{"id":26353,"date":"2025-03-29T10:03:05","date_gmt":"2025-03-29T03:03:05","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=26353"},"modified":"2025-03-29T10:03:05","modified_gmt":"2025-03-29T03:03:05","slug":"source-code-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/source-code-la-gi\/","title":{"rendered":"Source code l\u00e0 g\u00ec? Vai tr\u00f2, ph\u00e2n lo\u1ea1i &#038; c\u00e1ch xem m\u00e3 ngu\u1ed3n"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#Source-code-la-gi\" >Source code l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#Tam-quan-trong-cua-source-code\" >T\u1ea7m quan tr\u1ecdng c\u1ee7a source code<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#Source-Code-vs-Ma-May-Machine-Code-Ma-Thuc-thi-Executable-Code\" >Source Code vs. M\u00e3 M\u00e1y (Machine Code) \/ M\u00e3 Th\u1ef1c thi (Executable Code)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#Source-Code-duoc-viet-bang-nhung-ngon-ngu-lap-trinh-nao\" >Source Code \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng nh\u1eefng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#Workflow-co-ban-cua-source-code\" >Workflow c\u01a1 b\u1ea3n c\u1ee7a source code<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#Phan-loai-source-code\" >Ph\u00e2n lo\u1ea1i source code<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#1-Ma-nguon-mo-Open-Source\" >1. M\u00e3 ngu\u1ed3n m\u1edf (Open Source)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#2-Ma-nguon-dong-Closed-Source\" >2. M\u00e3 ngu\u1ed3n \u0111\u00f3ng (Closed Source)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#Cach-xem-source-code\" >C\u00e1ch xem source code<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#1-Su-dung-chuc-nang-%E2%80%9CView-Page-Source%E2%80%9D-Xem-nguon-trang\" >1. S\u1eed d\u1ee5ng ch\u1ee9c n\u0103ng &#8220;View Page Source&#8221; (Xem ngu\u1ed3n trang)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#2-Su-dung-cong-cu-%E2%80%9CInspect%E2%80%9D-hoac-%E2%80%9CInspect-Element%E2%80%9D-Kiem-tra-phan-tu\" >2. S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 &#8220;Inspect&#8221; ho\u1eb7c &#8220;Inspect Element&#8221; (Ki\u1ec3m tra ph\u1ea7n t\u1eed)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/#Luu-y-khi-xem-Source-Code\" >L\u01b0u \u00fd khi xem Source Code<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<p>Source code l\u00e0 n\u1ec1n t\u1ea3ng c\u1ed1t l\u00f5i c\u1ee7a m\u1ecdi ph\u1ea7n m\u1ec1m, \u1ee9ng d\u1ee5ng v\u00e0 website. N\u00f3 \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh v\u00e0 tr\u1ea3i qua qu\u00e1 tr\u00ecnh bi\u00ean d\u1ecbch \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u00e3 m\u00e1y c\u00f3 th\u1ec3 th\u1ef1c thi. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 source code l\u00e0 g\u00ec, t\u1ea7m quan tr\u1ecdng c\u1ee7a n\u00f3, s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa m\u00e3 ngu\u1ed3n m\u1edf v\u00e0 m\u00e3 ngu\u1ed3n \u0111\u00f3ng, c\u00e1ch ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 xem source code c\u1ee7a m\u1ed9t website.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Source-code-la-gi\"><\/span>Source code l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/\">Source code<\/a>, hay c\u00f2n g\u1ecdi l\u00e0 m\u00e3 ngu\u1ed3n, <strong>ch\u00ednh l\u00e0 t\u1eadp h\u1ee3p c\u00e1c ch\u1ec9 d\u1eabn<\/strong> vi\u1ebft b\u1eb1ng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh m\u00e0 con ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111\u1ecdc hi\u1ec3u. \u0110\u00e2y l\u00e0 phi\u00ean b\u1ea3n g\u1ed1c, l\u00e0 &#8220;b\u1ea3n thi\u1ebft k\u1ebf&#8221; do l\u1eadp tr\u00ecnh vi\u00ean t\u1ea1o ra, d\u00f9ng \u0111\u1ec3 x\u00e2y d\u1ef1ng v\u00e0 \u0111\u1ecbnh ngh\u0129a ch\u00ednh x\u00e1c c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh ph\u1ea7n m\u1ec1m hay m\u1ed9t website.<\/p>\n<p>V\u1ec1 b\u1ea3n ch\u1ea5t, m\u00e3 ngu\u1ed3n t\u1ed3n t\u1ea1i d\u01b0\u1edbi d\u1ea1ng v\u0103n b\u1ea3n (text) thu\u1ea7n t\u00fay. Tuy nhi\u00ean, n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 v\u0103n b\u1ea3n t\u1ef1 do m\u00e0 ph\u1ea3i <strong>tu\u00e2n theo nh\u1eefng quy t\u1eafc ng\u1eef ph\u00e1p r\u1ea5t ch\u1eb7t ch\u1ebd<\/strong>, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00fa ph\u00e1p (syntax), c\u1ee7a m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh c\u1ee5 th\u1ec3 (nh\u01b0 Python, Java hay HTML ch\u1eb3ng h\u1ea1n). S\u1ef1 tu\u00e2n th\u1ee7 n\u00e0y \u0111\u1ea3m b\u1ea3o m\u00e1y t\u00ednh hi\u1ec3u \u0111\u00fang \u00fd \u0111\u1ed3 c\u1ee7a ng\u01b0\u1eddi vi\u1ebft.<\/p>\n<p>M\u1ee5c \u0111\u00edch quan tr\u1ecdng nh\u1ea5t c\u1ee7a m\u00e3 ngu\u1ed3n l\u00e0 <strong>l\u00e0m c\u1ea7u n\u1ed1i giao ti\u1ebfp<\/strong> gi\u1eefa t\u01b0 duy, \u00fd t\u01b0\u1edfng c\u1ee7a con ng\u01b0\u1eddi v\u00e0 kh\u1ea3 n\u0103ng x\u1eed l\u00fd c\u1ee7a m\u00e1y t\u00ednh. V\u00ec m\u00e1y t\u00ednh ch\u1ec9 tr\u1ef1c ti\u1ebfp hi\u1ec3u m\u00e3 nh\u1ecb ph\u00e2n (d\u00e3y s\u1ed1 0 v\u00e0 1), m\u00e3 ngu\u1ed3n c\u1ea7n \u0111\u01b0\u1ee3c &#8220;d\u1ecbch&#8221; sang ng\u00f4n ng\u1eef m\u00e1y th\u00f4ng qua c\u00e1c c\u00f4ng c\u1ee5 chuy\u00ean bi\u1ec7t nh\u01b0 tr\u00ecnh bi\u00ean d\u1ecbch (compiler) ho\u1eb7c tr\u00ecnh th\u00f4ng d\u1ecbch (interpreter).<\/p>\n<p>B\u1ea1n c\u00f3 th\u1ec3 h\u00ecnh dung m\u00e3 ngu\u1ed3n gi\u1ed1ng nh\u01b0 <strong>m\u1ed9t c\u00f4ng th\u1ee9c n\u1ea5u \u0103n c\u1ef1c k\u1ef3 chi ti\u1ebft<\/strong> ho\u1eb7c m\u1ed9t b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf k\u1ef9 thu\u1eadt ho\u00e0n ch\u1ec9nh cho m\u1ed9t ng\u00f4i nh\u00e0. N\u00f3 cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 t\u1eebng b\u01b0\u1edbc, li\u1ec7t k\u00ea m\u1ecdi &#8220;nguy\u00ean li\u1ec7u&#8221; (l\u1ec7nh, bi\u1ebfn) v\u00e0 h\u01b0\u1edbng d\u1eabn tr\u00ecnh t\u1ef1 th\u1ef1c hi\u1ec7n \u0111\u1ec3 t\u1ea1o ra s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng, d\u00f9 l\u00e0 \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng hay website ph\u1ee9c t\u1ea1p.<\/p>\n<p>Ng\u01b0\u1eddi t\u1ea1o ra nh\u1eefng d\u00f2ng m\u00e3 ngu\u1ed3n n\u00e0y ch\u00ednh l\u00e0 c\u00e1c <strong>l\u1eadp tr\u00ecnh vi\u00ean (programmers)<\/strong> ho\u1eb7c nh\u00e0 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m (software developers). B\u1eb1ng ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n v\u1ec1 ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh v\u00e0 t\u01b0 duy logic, h\u1ecd vi\u1ebft n\u00ean c\u00e1c ch\u1ec9 th\u1ecb n\u00e0y, t\u1eebng b\u01b0\u1edbc bi\u1ebfn y\u00eau c\u1ea7u v\u00e0 \u00fd t\u01b0\u1edfng th\u00e0nh nh\u1eefng ch\u01b0\u01a1ng tr\u00ecnh m\u00e1y t\u00ednh h\u1eefu \u00edch, ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c trong th\u1ef1c t\u1ebf.<\/p>\n<figure id=\"attachment_26359\" aria-describedby=\"caption-attachment-26359\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code.jpg\" alt=\"source code\" width=\"800\" height=\"420\" class=\"size-full wp-image-26359\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-300x158.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-768x403.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-750x394.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-26359\" class=\"wp-caption-text\">source code<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Tam-quan-trong-cua-source-code\"><\/span>T\u1ea7m quan tr\u1ecdng c\u1ee7a source code<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Source code kh\u00f4ng ch\u1ec9 l\u00e0 n\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt \u0111\u01a1n thu\u1ea7n, m\u00e0 th\u1ef1c s\u1ef1 l\u00e0 <strong>tr\u00e1i tim v\u00e0 kh\u1ed1i \u00f3c<\/strong> c\u1ee7a m\u1ecdi s\u1ea3n ph\u1ea9m ph\u1ea7n m\u1ec1m, \u1ee9ng d\u1ee5ng hay website ch\u00fang ta s\u1eed d\u1ee5ng. N\u00f3 \u0111\u00f3ng vai tr\u00f2 kh\u00f4ng th\u1ec3 thi\u1ebfu trong su\u1ed1t v\u00f2ng \u0111\u1eddi ph\u00e1t tri\u1ec3n, quy\u1ebft \u0111\u1ecbnh t\u1eeb vi\u1ec7c h\u00ecnh th\u00e0nh s\u1ea3n ph\u1ea9m \u0111\u1ebfn kh\u1ea3 n\u0103ng t\u1ed3n t\u1ea1i v\u00e0 ph\u00e1t tri\u1ec3n l\u00e2u d\u00e0i c\u1ee7a n\u00f3.<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng vai tr\u00f2 quan tr\u1ecdng c\u1ee5 th\u1ec3 c\u1ee7a m\u00e3 ngu\u1ed3n:<\/p>\n<ul>\n<li><strong>T\u1ea1o ra Ph\u1ea7n m\u1ec1m\/\u1ee8ng d\u1ee5ng\/Website:<\/strong> \u0110\u00e2y l\u00e0 vai tr\u00f2 n\u1ec1n t\u1ea3ng v\u00e0 hi\u1ec3n nhi\u00ean nh\u1ea5t. M\u00e3 ngu\u1ed3n ch\u00ednh l\u00e0 c\u00f4ng c\u1ee5 \u0111\u1ec3 <strong>bi\u1ebfn nh\u1eefng \u00fd t\u01b0\u1edfng th\u00e0nh hi\u1ec7n th\u1ef1c s\u1ed1<\/strong>. M\u1ecdi ch\u1ee9c n\u0103ng, giao di\u1ec7n, v\u00e0 logic ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ed9t ph\u1ea7n m\u1ec1m, t\u1eeb game \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn h\u1ec7 th\u1ed1ng doanh nghi\u1ec7p ph\u1ee9c t\u1ea1p, \u0111\u1ec1u \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1edfi c\u00e1c d\u00f2ng l\u1ec7nh trong m\u00e3 ngu\u1ed3n. Kh\u00f4ng c\u00f3 n\u00f3, kh\u00f4ng c\u00f3 s\u1ea3n ph\u1ea9m ph\u1ea7n m\u1ec1m.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng B\u1ea3o tr\u00ec v\u00e0 N\u00e2ng c\u1ea5p (Maintenance &amp; Updates):<\/strong> C\u00f4ng ngh\u1ec7 v\u00e0 nhu c\u1ea7u ng\u01b0\u1eddi d\u00f9ng li\u00ean t\u1ee5c thay \u0111\u1ed5i. M\u00e3 ngu\u1ed3n cho ph\u00e9p l\u1eadp tr\u00ecnh vi\u00ean <strong>d\u1ec5 d\u00e0ng quay l\u1ea1i, ch\u1ec9nh s\u1eeda v\u00e0 c\u1ea3i ti\u1ebfn<\/strong> s\u1ea3n ph\u1ea9m. Vi\u1ec7c n\u00e0y bao g\u1ed3m s\u1eeda c\u00e1c l\u1ed7i ph\u00e1t sinh (bugs), th\u00eam t\u00ednh n\u0103ng m\u1edbi, t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t, hay \u0111\u1ea3m b\u1ea3o t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh, tr\u00ecnh duy\u1ec7t m\u1edbi.<\/li>\n<li><strong>G\u1ee1 l\u1ed7i (Debugging):<\/strong> Khi ph\u1ea7n m\u1ec1m ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u0111\u00fang nh\u01b0 mong \u0111\u1ee3i, m\u00e3 ngu\u1ed3n l\u00e0 n\u01a1i duy nh\u1ea5t \u0111\u1ec3 <strong>t\u00ecm ra g\u1ed1c r\u1ec5 c\u1ee7a v\u1ea5n \u0111\u1ec1<\/strong>. L\u1eadp tr\u00ecnh vi\u00ean s\u1ebd \u0111\u1ecdc v\u00e0 ph\u00e2n t\u00edch m\u00e3 ngu\u1ed3n, m\u1ed9t qu\u00e1 tr\u00ecnh g\u1ecdi l\u00e0 &#8220;g\u1ee1 l\u1ed7i&#8221; (debugging), \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c \u0111o\u1ea1n m\u00e3 g\u00e2y ra l\u1ed7i v\u00e0 \u0111\u01b0a ra gi\u1ea3i ph\u00e1p kh\u1eafc ph\u1ee5c hi\u1ec7u qu\u1ea3.<\/li>\n<li><strong>H\u1ee3p t\u00e1c Ph\u00e1t tri\u1ec3n (Collaboration):<\/strong> Hi\u1ebfm c\u00f3 ph\u1ea7n m\u1ec1m n\u00e0o \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng ch\u1ec9 b\u1edfi m\u1ed9t ng\u01b0\u1eddi. M\u00e3 ngu\u1ed3n, \u0111\u1eb7c bi\u1ec7t khi \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd b\u1eb1ng c\u00e1c h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd phi\u00ean b\u1ea3n nh\u01b0 Git, cho ph\u00e9p nhi\u1ec1u l\u1eadp tr\u00ecnh vi\u00ean <strong>c\u00f9ng l\u00e0m vi\u1ec7c tr\u00ean m\u1ed9t d\u1ef1 \u00e1n<\/strong> m\u1ed9t c\u00e1ch c\u00f3 t\u1ed5 ch\u1ee9c, theo d\u00f5i l\u1ecbch s\u1eed thay \u0111\u1ed5i v\u00e0 t\u00edch h\u1ee3p c\u00f4ng vi\u1ec7c c\u1ee7a nhau m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/li>\n<li><strong>T\u00f9y bi\u1ebfn v\u00e0 T\u00e1i s\u1eed d\u1ee5ng (Customization &amp; Reusability):<\/strong> M\u00e3 ngu\u1ed3n cung c\u1ea5p kh\u1ea3 n\u0103ng <strong>\u0111i\u1ec1u ch\u1ec9nh ph\u1ea7n m\u1ec1m<\/strong> \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c nhu c\u1ea7u \u0111\u1eb7c th\u00f9 kh\u00e1c nhau. Quan tr\u1ecdng h\u01a1n, c\u00e1c \u0111o\u1ea1n m\u00e3 ngu\u1ed3n \u0111\u01b0\u1ee3c vi\u1ebft t\u1ed1t (v\u00ed d\u1ee5: c\u00e1c h\u00e0m, th\u01b0 vi\u1ec7n) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e1i s\u1eed d\u1ee5ng trong nhi\u1ec1u d\u1ef1 \u00e1n kh\u00e1c, gi\u00fap <strong>ti\u1ebft ki\u1ec7m \u0111\u00e1ng k\u1ec3 th\u1eddi gian<\/strong>, c\u00f4ng s\u1ee9c v\u00e0 chi ph\u00ed ph\u00e1t tri\u1ec3n.<\/li>\n<li><strong>Ki\u1ec3m tra v\u00e0 X\u00e1c minh (Auditing &amp; Verification):<\/strong> Tr\u01b0\u1edbc khi ph\u1ea7n m\u1ec1m \u0111\u1ebfn tay ng\u01b0\u1eddi d\u00f9ng, c\u00e1c chuy\u00ean gia ki\u1ec3m th\u1eed (testers) v\u00e0 chuy\u00ean gia b\u1ea3o m\u1eadt th\u01b0\u1eddng xem x\u00e9t m\u00e3 ngu\u1ed3n. Vi\u1ec7c n\u00e0y gi\u00fap <strong>ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt<\/strong>, \u0111\u1ea3m b\u1ea3o ch\u01b0\u01a1ng tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang logic thi\u1ebft k\u1ebf v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng.<\/li>\n<li><strong>H\u1ecdc h\u1ecfi v\u00e0 Nghi\u00ean c\u1ee9u:<\/strong> M\u00e3 ngu\u1ed3n, \u0111\u1eb7c bi\u1ec7t l\u00e0 m\u00e3 ngu\u1ed3n m\u1edf (open source), l\u00e0 m\u1ed9t <strong>ngu\u1ed3n t\u00e0i li\u1ec7u h\u1ecdc t\u1eadp v\u00f4 gi\u00e1<\/strong>. B\u1eb1ng c\u00e1ch \u0111\u1ecdc v\u00e0 ph\u00e2n t\u00edch m\u00e3 ngu\u1ed3n c\u1ee7a c\u00e1c d\u1ef1 \u00e1n th\u1ef1c t\u1ebf, ng\u01b0\u1eddi h\u1ecdc c\u00f3 th\u1ec3 hi\u1ec3u s\u00e2u s\u1eafc v\u1ec1 c\u00e1c k\u1ef9 thu\u1eadt l\u1eadp tr\u00ecnh, c\u1ea5u tr\u00fac ph\u1ea7n m\u1ec1m v\u00e0 c\u00e1ch gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i to\u00e1n ph\u1ee9c t\u1ea1p.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-01.jpg\" alt=\"source code 01\" width=\"800\" height=\"534\" class=\"aligncenter size-full wp-image-26355\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-01.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-01-300x200.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-01-768x513.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-01-750x501.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Source-Code-vs-Ma-May-Machine-Code-Ma-Thuc-thi-Executable-Code\"><\/span>Source Code vs. M\u00e3 M\u00e1y (Machine Code) \/ M\u00e3 Th\u1ef1c thi (Executable Code)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110i\u1ec3m kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i v\u00e0 d\u1ec5 hi\u1ec3u nh\u1ea5t gi\u1eefa source code (m\u00e3 ngu\u1ed3n) v\u00e0 m\u00e3 m\u00e1y (machine code) n\u1eb1m \u1edf <strong>\u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 \u0111\u1ecdc hi\u1ec3u ch\u00fang<\/strong>. R\u1ea5t \u0111\u01a1n gi\u1ea3n, source code \u0111\u01b0\u1ee3c vi\u1ebft ra \u0111\u1ec3 con ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111\u1ecdc v\u00e0 vi\u1ebft, trong khi m\u00e3 m\u00e1y l\u00e0 ng\u00f4n ng\u1eef nh\u1ecb ph\u00e2n (0 v\u00e0 1) d\u00e0nh ri\u00eang cho b\u1ed9 x\u1eed l\u00fd (CPU) c\u1ee7a m\u00e1y t\u00ednh.<\/p>\n<p>Nh\u01b0 ch\u00fang ta \u0111\u00e3 t\u00ecm hi\u1ec3u \u1edf ph\u1ea7n tr\u01b0\u1edbc, source code t\u1ed3n t\u1ea1i d\u01b0\u1edbi d\u1ea1ng v\u0103n b\u1ea3n, <strong>s\u1eed d\u1ee5ng t\u1eeb ng\u1eef, k\u00fd hi\u1ec7u, v\u00e0 c\u1ea5u tr\u00fac<\/strong> theo quy t\u1eafc c\u1ee7a m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh c\u1ee5 th\u1ec3 (v\u00ed d\u1ee5: <code>print(\"Hello\")<\/code> trong Python). N\u00f3 cho ph\u00e9p l\u1eadp tr\u00ecnh vi\u00ean di\u1ec5n \u0111\u1ea1t logic, thu\u1eadt to\u00e1n m\u1ed9t c\u00e1ch t\u01b0\u1eddng minh, d\u1ec5 d\u00e0ng ch\u1ec9nh s\u1eeda v\u00e0 b\u1ea3o tr\u00ec khi c\u1ea7n thi\u1ebft.<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i ho\u00e0n to\u00e0n, m\u00e3 m\u00e1y l\u00e0 m\u1ed9t <strong>chu\u1ed7i d\u00e0i c\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eed bi\u1ec3u di\u1ec5n b\u1eb1ng s\u1ed1 0 v\u00e0 1<\/strong>, tr\u00f4ng nh\u01b0 m\u1ed9t m\u1edb h\u1ed7n \u0111\u1ed9n v\u1edbi h\u1ea7u h\u1ebft ch\u00fang ta. Tuy nhi\u00ean, \u0111\u00e2y l\u1ea1i ch\u00ednh l\u00e0 &#8220;ng\u00f4n ng\u1eef m\u1eb9 \u0111\u1ebb&#8221; m\u00e0 CPU &#8211; b\u1ed9 n\u00e3o x\u1eed l\u00fd c\u1ee7a m\u00e1y t\u00ednh &#8211; c\u00f3 th\u1ec3 hi\u1ec3u v\u00e0 th\u1ef1c thi tr\u1ef1c ti\u1ebfp \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p to\u00e1n, x\u1eed l\u00fd d\u1eef li\u1ec7u theo y\u00eau c\u1ea7u.<\/p>\n<p>Ch\u00ednh v\u00ec s\u1ef1 kh\u00e1c bi\u1ec7t ng\u00f4n ng\u1eef c\u0103n b\u1ea3n n\u00e0y, m\u00e1y t\u00ednh kh\u00f4ng th\u1ec3 ch\u1ea1y tr\u1ef1c ti\u1ebfp source code \u0111\u01b0\u1ee3c. Ch\u00fang ta c\u1ea7n m\u1ed9t &#8220;ng\u01b0\u1eddi phi\u00ean d\u1ecbch&#8221; \u0111\u1eb7c bi\u1ec7t, \u0111\u00f3 l\u00e0 c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh g\u1ecdi l\u00e0 <strong>tr\u00ecnh bi\u00ean d\u1ecbch (compiler)<\/strong> ho\u1eb7c <strong>tr\u00ecnh th\u00f4ng d\u1ecbch (interpreter)<\/strong>. Nhi\u1ec7m v\u1ee5 c\u1ee7a ch\u00fang l\u00e0 chuy\u1ec3n \u0111\u1ed5i c\u00e1c ch\u1ec9 d\u1eabn t\u1eeb source code sang d\u1ea1ng m\u00e3 m\u00e1y t\u01b0\u01a1ng \u1ee9ng m\u00e0 CPU hi\u1ec3u \u0111\u01b0\u1ee3c.<\/p>\n<p>Sau qu\u00e1 tr\u00ecnh bi\u00ean d\u1ecbch, k\u1ebft qu\u1ea3 th\u01b0\u1eddng l\u00e0 m\u1ed9t ho\u1eb7c nhi\u1ec1u t\u1ec7p ch\u1ee9a m\u00e3 m\u00e1y, s\u1eb5n s\u00e0ng \u0111\u1ec3 ch\u1ea1y. T\u1ec7p n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong>m\u00e3 th\u1ef1c thi (executable code)<\/strong> &#8211; v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh l\u00e0 c\u00e1c t\u1ec7p c\u00f3 \u0111u\u00f4i <code>.exe<\/code> tr\u00ean h\u1ec7 \u0111i\u1ec1u h\u00e0nh Windows. Ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i ch\u1ec9 c\u1ea7n ch\u1ea1y t\u1ec7p n\u00e0y \u0111\u1ec3 s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m m\u00e0 kh\u00f4ng c\u1ea7n bi\u1ebft \u0111\u1ebfn source code g\u1ed1c.<\/p>\n<p>\u0110\u1ec3 d\u1ec5 h\u00ecnh dung h\u01a1n, h\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng qu\u00e1 tr\u00ecnh n\u00e0y gi\u1ed1ng nh\u01b0 vi\u1ec7c <strong>d\u1ecbch thu\u1eadt m\u1ed9t cu\u1ed1n ti\u1ec3u thuy\u1ebft t\u1eeb ti\u1ebfng Anh sang ti\u1ebfng Vi\u1ec7t<\/strong>. Source code gi\u1ed1ng nh\u01b0 b\u1ea3n g\u1ed1c ti\u1ebfng Anh (con ng\u01b0\u1eddi \u0111\u1ecdc), m\u00e3 m\u00e1y l\u00e0 b\u1ea3n d\u1ecbch ti\u1ebfng Vi\u1ec7t (m\u00e1y t\u00ednh &#8220;\u0111\u1ecdc&#8221;). C\u00f2n tr\u00ecnh bi\u00ean d\u1ecbch hay th\u00f4ng d\u1ecbch \u0111\u00f3ng vai tr\u00f2 l\u00e0 ng\u01b0\u1eddi d\u1ecbch vi\u00ean c\u1ea7n m\u1eabn th\u1ef1c hi\u1ec7n c\u00f4ng vi\u1ec7c chuy\u1ec3n ng\u1eef quan tr\u1ecdng \u0111\u00f3.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Source-Code-duoc-viet-bang-nhung-ngon-ngu-lap-trinh-nao\"><\/span>Source Code \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng nh\u1eefng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1ed9t c\u00e2u h\u1ecfi r\u1ea5t th\u00fa v\u1ecb! Th\u1ef1c t\u1ebf l\u00e0 source code c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng <strong>h\u00e0ng tr\u0103m ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh (programming languages) kh\u00e1c nhau<\/strong> \u0111ang t\u1ed3n t\u1ea1i. Kh\u00f4ng c\u00f3 m\u1ed9t ng\u00f4n ng\u1eef &#8220;th\u1ea7n th\u00e1nh&#8221; n\u00e0o d\u00f9ng cho m\u1ecdi lo\u1ea1i m\u00e3 ngu\u1ed3n; s\u1ef1 l\u1ef1a ch\u1ecdn ng\u00f4n ng\u1eef n\u00e0o ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o m\u1ee5c \u0111\u00edch \u1ee9ng d\u1ee5ng, n\u1ec1n t\u1ea3ng s\u1ebd ch\u1ea1y, v\u00e0 c\u1ea3 kinh nghi\u1ec7m, s\u1edf th\u00edch c\u1ee7a \u0111\u1ed9i ng\u0169 ph\u00e1t tri\u1ec3n n\u1eefa.<\/p>\n<p>M\u1ed7i ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi <strong>nh\u1eefng \u01b0u \u0111i\u1ec3m v\u00e0 \u0111\u1eb7c tr\u01b0ng ri\u00eang<\/strong>, t\u1ed1i \u01b0u cho c\u00e1c lo\u1ea1i c\u00f4ng vi\u1ec7c nh\u1ea5t \u0111\u1ecbnh. Ch\u00fang ta c\u00f3 th\u1ec3 t\u1ea1m chia ch\u00fang th\u00e0nh c\u00e1c nh\u00f3m d\u1ef1a tr\u00ean l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn, v\u00ed d\u1ee5 nh\u01b0 b\u1ea1n s\u1ebd th\u1ea5y c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c nhau \u0111\u01b0\u1ee3c \u01b0u ti\u00ean d\u00f9ng cho vi\u1ec7c l\u00e0m web so v\u1edbi vi\u1ec7c vi\u1ebft \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng.<\/p>\n<p>Khi b\u1ea1n l\u01b0\u1edbt web, ph\u1ea7n giao di\u1ec7n b\u1ea1n nh\u00ecn th\u1ea5y v\u00e0 t\u01b0\u01a1ng t\u00e1c (g\u1ecdi l\u00e0 frontend) ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c t\u1ea1o b\u1edfi b\u1ed9 ba kh\u00f4ng th\u1ec3 t\u00e1ch r\u1eddi: <strong>HTML (HyperText Markup Language)<\/strong> \u0111\u1ecbnh ngh\u0129a c\u1ea5u tr\u00fac v\u00e0 n\u1ed9i dung, <strong>CSS (Cascading Style Sheets)<\/strong> quy\u1ebft \u0111\u1ecbnh m\u00e0u s\u1eafc, b\u1ed1 c\u1ee5c, v\u00e0 <strong>JavaScript<\/strong> t\u1ea1o ra c\u00e1c hi\u1ec7u \u1ee9ng \u0111\u1ed9ng v\u00e0 x\u1eed l\u00fd t\u01b0\u01a1ng t\u00e1c ng\u01b0\u1eddi d\u00f9ng ngay tr\u00ean tr\u00ecnh duy\u1ec7t.<\/p>\n<p>Ph\u1ea7n x\u1eed l\u00fd logic \u1ea9n ph\u00eda sau, ch\u1ea1y tr\u00ean m\u00e1y ch\u1ee7 (g\u1ecdi l\u00e0 backend) c\u1ee7a m\u1ed9t website ho\u1eb7c \u1ee9ng d\u1ee5ng web, l\u1ea1i c\u00f3 nhi\u1ec1u l\u1ef1a ch\u1ecdn phong ph\u00fa h\u01a1n. M\u1ed9t s\u1ed1 c\u00e1i t\u00ean r\u1ea5t ph\u1ed5 bi\u1ebfn bao g\u1ed3m <strong>Python, Java, PHP, Ruby, Node.js (v\u1ed1n d\u00f9ng JavaScript)<\/strong> hay <strong>C#<\/strong>. M\u1ed7i ng\u00f4n ng\u1eef n\u00e0y l\u1ea1i c\u00f3 c\u00e1c framework v\u00e0 th\u01b0 vi\u1ec7n h\u1ed7 tr\u1ee3 m\u1ea1nh m\u1ebd ri\u00eang.<\/p>\n<p>Ngo\u00e0i l\u0129nh v\u1ef1c web, th\u1ebf gi\u1edbi l\u1eadp tr\u00ecnh c\u00f2n v\u00f4 c\u00f9ng r\u1ed9ng l\u1edbn. <strong>Swift (cho iOS c\u1ee7a Apple) v\u00e0 Kotlin (cho Android c\u1ee7a Google)<\/strong> l\u00e0 nh\u1eefng ng\u00f4i sao trong vi\u1ec7c ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng. <strong>Python v\u00e0 R<\/strong> l\u1ea1i c\u1ef1c k\u1ef3 m\u1ea1nh m\u1ebd trong l\u0129nh v\u1ef1c khoa h\u1ecdc d\u1eef li\u1ec7u, m\u00e1y h\u1ecdc v\u00e0 tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o (AI &#8211; Artificial Intelligence). C\u00f2n <strong>C++ v\u00e0 C<\/strong> th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ecdn cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi hi\u1ec7u n\u0103ng cao nh\u01b0 game hay l\u1eadp tr\u00ecnh h\u1ec7 th\u1ed1ng.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-02.jpg\" alt=\"source code 02\" width=\"800\" height=\"533\" class=\"aligncenter size-full wp-image-26356\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-02.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-02-300x200.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-02-768x512.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-02-750x500.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Workflow-co-ban-cua-source-code\"><\/span>Workflow c\u01a1 b\u1ea3n c\u1ee7a source code<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Workflow (lu\u1ed3ng c\u00f4ng vi\u1ec7c) c\u01a1 b\u1ea3n c\u1ee7a source code l\u00e0 m\u1ed9t quy tr\u00ecnh g\u1ed3m <strong>v\u00e0i b\u01b0\u1edbc ch\u00ednh \u0111\u1ec3 bi\u1ebfn \u00fd t\u01b0\u1edfng th\u00e0nh ch\u01b0\u01a1ng tr\u00ecnh ch\u1ea1y \u0111\u01b0\u1ee3c<\/strong>: t\u1eeb vi\u1ec7c vi\u1ebft c\u00e1c d\u00f2ng l\u1ec7nh b\u1eb1ng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh, l\u01b0u ch\u00fang l\u1ea1i, sau \u0111\u00f3 &#8220;d\u1ecbch&#8221; sang ng\u00f4n ng\u1eef m\u00e1y t\u00ednh hi\u1ec3u \u0111\u01b0\u1ee3c v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 cho ch\u01b0\u01a1ng tr\u00ecnh \u0111\u00f3 ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<p>H\u00e3y c\u00f9ng xem chi ti\u1ebft t\u1eebng b\u01b0\u1edbc trong quy tr\u00ecnh n\u00e0y:<\/p>\n<ol>\n<li><strong>Vi\u1ebft m\u00e3 (Writing):<\/strong> M\u1ecdi th\u1ee9 b\u1eaft \u0111\u1ea7u khi l\u1eadp tr\u00ecnh vi\u00ean <strong>s\u1eed d\u1ee5ng m\u1ed9t c\u00f4ng c\u1ee5 so\u1ea1n th\u1ea3o<\/strong> \u0111\u1ec3 vi\u1ebft m\u00e3 ngu\u1ed3n. C\u00f4ng c\u1ee5 n\u00e0y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t tr\u00ecnh so\u1ea1n th\u1ea3o v\u0103n b\u1ea3n (Text Editor) \u0111\u01a1n gi\u1ea3n nh\u01b0 Notepad++, Sublime Text, ho\u1eb7c m\u1ed9t M\u00f4i tr\u01b0\u1eddng Ph\u00e1t tri\u1ec3n T\u00edch h\u1ee3p (IDE &#8211; Integrated Development Environment) \u0111\u1ea7y \u0111\u1ee7 t\u00ednh n\u0103ng h\u01a1n nh\u01b0 Visual Studio Code, IntelliJ IDEA. T\u1ea1i \u0111\u00e2y, h\u1ecd g\u00f5 c\u00e1c d\u00f2ng l\u1ec7nh theo \u0111\u00fang c\u00fa ph\u00e1p c\u1ee7a ng\u00f4n ng\u1eef \u0111\u00e3 ch\u1ecdn.<\/li>\n<li><strong>L\u01b0u tr\u1eef (Saving):<\/strong> Sau khi vi\u1ebft xong ho\u1eb7c trong qu\u00e1 tr\u00ecnh vi\u1ebft, m\u00e3 ngu\u1ed3n c\u1ea7n \u0111\u01b0\u1ee3c <strong>l\u01b0u l\u1ea1i th\u00e0nh m\u1ed9t ho\u1eb7c nhi\u1ec1u t\u1ec7p tin v\u0103n b\u1ea3n<\/strong>. C\u00e1c t\u1ec7p n\u00e0y th\u01b0\u1eddng c\u00f3 ph\u1ea7n m\u1edf r\u1ed9ng (\u0111u\u00f4i t\u1ec7p) \u0111\u1eb7c tr\u01b0ng cho ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh \u0111\u00f3, v\u00ed d\u1ee5: t\u1ec7p m\u00e3 Python th\u01b0\u1eddng c\u00f3 \u0111u\u00f4i <code>.py<\/code>, m\u00e3 Java l\u00e0 <code>.java<\/code>, m\u00e3 JavaScript l\u00e0 <code>.js<\/code>. \u0110i\u1ec1u n\u00e0y gi\u00fap c\u1ea3 ng\u01b0\u1eddi d\u00f9ng v\u00e0 h\u1ec7 th\u1ed1ng d\u1ec5 d\u00e0ng nh\u1eadn di\u1ec7n lo\u1ea1i m\u00e3 ngu\u1ed3n.<\/li>\n<li><strong>Bi\u00ean d\u1ecbch ho\u1eb7c Th\u00f4ng d\u1ecbch (Compiling or Interpreting):<\/strong> \u0110\u00e2y l\u00e0 b\u01b0\u1edbc c\u1ef1c k\u1ef3 quan tr\u1ecdng \u0111\u1ec3 m\u00e1y t\u00ednh c\u00f3 th\u1ec3 &#8220;hi\u1ec3u&#8221; \u0111\u01b0\u1ee3c nh\u1eefng g\u00ec con ng\u01b0\u1eddi vi\u1ebft. T\u00f9y v\u00e0o b\u1ea3n ch\u1ea5t c\u1ee7a ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh, m\u00e3 ngu\u1ed3n s\u1ebd \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi:\n<ul>\n<li><strong>Tr\u00ecnh bi\u00ean d\u1ecbch (Compiler):<\/strong> \u0110\u1ecdc to\u00e0n b\u1ed9 m\u00e3 ngu\u1ed3n v\u00e0 d\u1ecbch n\u00f3 m\u1ed9t l\u1ea7n sang m\u00e3 m\u00e1y (ho\u1eb7c m\u1ed9t d\u1ea1ng m\u00e3 trung gian).<\/li>\n<li><strong>Tr\u00ecnh th\u00f4ng d\u1ecbch (Interpreter):<\/strong> \u0110\u1ecdc v\u00e0 th\u1ef1c thi m\u00e3 ngu\u1ed3n t\u1eebng d\u00f2ng m\u1ed9t ho\u1eb7c t\u1eebng kh\u1ed1i l\u1ec7nh.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Th\u1ef1c thi (Executing):<\/strong> Cu\u1ed1i c\u00f9ng, m\u00e3 m\u00e1y \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb tr\u00ecnh bi\u00ean d\u1ecbch, ho\u1eb7c c\u00e1c l\u1ec7nh \u0111\u01b0\u1ee3c \u0111\u1ecdc b\u1edfi tr\u00ecnh th\u00f4ng d\u1ecbch, s\u1ebd <strong>\u0111\u01b0\u1ee3c h\u1ec7 \u0111i\u1ec1u h\u00e0nh ho\u1eb7c m\u1ed9t m\u00f4i tr\u01b0\u1eddng ch\u1ea1y (runtime environment) c\u1ee5 th\u1ec3 th\u1ef1c thi<\/strong>. L\u00fac n\u00e0y, ch\u01b0\u01a1ng tr\u00ecnh s\u1ebd ho\u1ea1t \u0111\u1ed9ng, th\u1ef1c hi\u1ec7n c\u00e1c ch\u1ee9c n\u0103ng \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh, nh\u01b0 hi\u1ec3n th\u1ecb giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng, x\u1eed l\u00fd d\u1eef li\u1ec7u, ho\u1eb7c t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c.<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"Phan-loai-source-code\"><\/span>Ph\u00e2n lo\u1ea1i source code<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Khi xem x\u00e9t c\u00e1ch source code \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd, chia s\u1ebb v\u00e0 s\u1eed d\u1ee5ng, ng\u01b0\u1eddi ta th\u01b0\u1eddng ph\u00e2n lo\u1ea1i n\u00f3 th\u00e0nh <strong>hai nh\u00f3m ch\u00ednh d\u1ef1a tr\u00ean gi\u1ea5y ph\u00e9p (license)<\/strong> v\u00e0 m\u1ee9c \u0111\u1ed9 c\u00f4ng khai quy\u1ec1n truy c\u1eadp: \u0111\u00f3 l\u00e0 m\u00e3 ngu\u1ed3n m\u1edf (open source) v\u00e0 m\u00e3 ngu\u1ed3n \u0111\u00f3ng (closed source hay proprietary source). M\u1ed7i lo\u1ea1i c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m, tri\u1ebft l\u00fd v\u00e0 m\u00f4 h\u00ecnh kinh doanh ri\u00eang bi\u1ec7t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-Ma-nguon-mo-Open-Source\"><\/span>1. M\u00e3 ngu\u1ed3n m\u1edf (Open Source)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u00e3 ngu\u1ed3n m\u1edf (th\u01b0\u1eddng vi\u1ebft t\u1eaft l\u00e0 OSS &#8211; Open Source Software) d\u00f9ng \u0111\u1ec3 ch\u1ec9 nh\u1eefng ph\u1ea7n m\u1ec1m m\u00e0 <strong>source code \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 c\u00f4ng khai<\/strong>. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 b\u1ea5t k\u1ef3 ai c\u0169ng \u0111\u01b0\u1ee3c t\u1ef1 do xem, nghi\u00ean c\u1ee9u c\u00e1ch ch\u01b0\u01a1ng tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng, s\u1eeda \u0111\u1ed5i m\u00e3 ngu\u1ed3n \u0111\u00f3 v\u00e0 th\u1eadm ch\u00ed l\u00e0 ph\u00e2n ph\u1ed1i l\u1ea1i phi\u00ean b\u1ea3n \u0111\u00e3 s\u1eeda \u0111\u1ed5i, mi\u1ec5n l\u00e0 tu\u00e2n th\u1ee7 c\u00e1c \u0111i\u1ec1u kho\u1ea3n c\u1ee7a gi\u1ea5y ph\u00e9p ngu\u1ed3n m\u1edf \u0111i k\u00e8m (v\u00ed d\u1ee5: GPL, MIT, Apache).<\/p>\n<p>Tri\u1ebft l\u00fd c\u1ed1t l\u00f5i c\u1ee7a phong tr\u00e0o m\u00e3 ngu\u1ed3n m\u1edf l\u00e0 <strong>khuy\u1ebfn kh\u00edch s\u1ef1 h\u1ee3p t\u00e1c, chia s\u1ebb ki\u1ebfn th\u1ee9c v\u00e0 minh b\u1ea1ch<\/strong>. Khi m\u00e3 ngu\u1ed3n \u0111\u01b0\u1ee3c m\u1edf, c\u1ed9ng \u0111\u1ed3ng l\u1eadp tr\u00ecnh vi\u00ean to\u00e0n c\u1ea7u c\u00f3 th\u1ec3 c\u00f9ng nhau \u0111\u00f3ng g\u00f3p c\u1ea3i ti\u1ebfn, nhanh ch\u00f3ng ph\u00e1t hi\u1ec7n v\u00e0 s\u1eeda l\u1ed7i. Ng\u01b0\u1eddi d\u00f9ng c\u0169ng c\u00f3 quy\u1ec1n t\u1ef1 do t\u00f9y bi\u1ebfn ph\u1ea7n m\u1ec1m \u0111\u1ec3 ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a m\u00ecnh.<\/p>\n<p>Th\u1ebf gi\u1edbi c\u00f4ng ngh\u1ec7 ch\u1ee9ng ki\u1ebfn s\u1ef1 th\u00e0nh c\u00f4ng r\u1ef1c r\u1ee1 c\u1ee7a v\u00f4 s\u1ed1 d\u1ef1 \u00e1n m\u00e3 ngu\u1ed3n m\u1edf. M\u1ed9t v\u00e0i v\u00ed d\u1ee5 ti\u00eau bi\u1ec3u kh\u00f4ng th\u1ec3 kh\u00f4ng nh\u1eafc \u0111\u1ebfn nh\u01b0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh <strong>Linux<\/strong>, tr\u00ecnh duy\u1ec7t web <strong>Mozilla Firefox<\/strong>, h\u1ec7 qu\u1ea3n tr\u1ecb n\u1ed9i dung ph\u1ed5 bi\u1ebfn <strong>WordPress<\/strong>, c\u01a1 s\u1edf d\u1eef li\u1ec7u <strong>MySQL\/PostgreSQL<\/strong>, v\u00e0 nhi\u1ec1u ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh nh\u01b0 <strong>Python<\/strong> hay <strong>PHP<\/strong>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-Ma-nguon-dong-Closed-Source\"><\/span>2. M\u00e3 ngu\u1ed3n \u0111\u00f3ng (Closed Source)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u00e1i ng\u01b0\u1ee3c ho\u00e0n to\u00e0n, m\u00e3 ngu\u1ed3n \u0111\u00f3ng (Closed Source Software), hay c\u00f2n g\u1ecdi l\u00e0 ph\u1ea7n m\u1ec1m \u0111\u1ed9c quy\u1ec1n (proprietary software), l\u00e0 lo\u1ea1i ph\u1ea7n m\u1ec1m m\u00e0 <strong>source code \u0111\u01b0\u1ee3c gi\u1eef b\u00ed m\u1eadt nghi\u00eam ng\u1eb7t<\/strong>. N\u00f3 \u0111\u01b0\u1ee3c coi l\u00e0 t\u00e0i s\u1ea3n tr\u00ed tu\u1ec7, l\u00e0 b\u00ed m\u1eadt kinh doanh c\u1ed1t l\u00f5i c\u1ee7a c\u00f4ng ty ho\u1eb7c c\u00e1 nh\u00e2n \u0111\u00e3 t\u1ea1o ra v\u00e0 s\u1edf h\u1eefu n\u00f3.<\/p>\n<p>V\u1edbi ph\u1ea7n m\u1ec1m m\u00e3 ngu\u1ed3n \u0111\u00f3ng, ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i th\u01b0\u1eddng ch\u1ec9 nh\u1eadn \u0111\u01b0\u1ee3c phi\u00ean b\u1ea3n \u0111\u00e3 \u0111\u01b0\u1ee3c bi\u00ean d\u1ecbch th\u00e0nh m\u00e3 m\u00e1y (t\u1ee9c l\u00e0 t\u1ec7p th\u1ef1c thi nh\u01b0 <code>.exe<\/code>) v\u00e0 <strong>kh\u00f4ng c\u00f3 quy\u1ec1n truy c\u1eadp, xem, nghi\u00ean c\u1ee9u hay s\u1eeda \u0111\u1ed5i<\/strong> source code g\u1ed1c. M\u1ecdi ho\u1ea1t \u0111\u1ed9ng c\u1eadp nh\u1eadt, s\u1eeda l\u1ed7i hay n\u00e2ng c\u1ea5p \u0111\u1ec1u do nh\u00e0 cung c\u1ea5p ph\u1ea7n m\u1ec1m \u0111\u1ed9c quy\u1ec1n ki\u1ec3m so\u00e1t v\u00e0 th\u1ef1c hi\u1ec7n.<\/p>\n<p>R\u1ea5t nhi\u1ec1u ph\u1ea7n m\u1ec1m th\u01b0\u01a1ng m\u1ea1i quen thu\u1ed9c m\u00e0 ch\u00fang ta s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y thu\u1ed9c lo\u1ea1i m\u00e3 ngu\u1ed3n \u0111\u00f3ng. C\u00e1c v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m h\u1ec7 \u0111i\u1ec1u h\u00e0nh <strong>Microsoft Windows<\/strong>, b\u1ed9 \u1ee9ng d\u1ee5ng v\u0103n ph\u00f2ng <strong>Microsoft Office<\/strong>, c\u00e1c ph\u1ea7n m\u1ec1m s\u00e1ng t\u1ea1o c\u1ee7a <strong>Adobe (Photoshop, Illustrator)<\/strong>, hay h\u1ec7 \u0111i\u1ec1u h\u00e0nh <strong>macOS<\/strong> v\u00e0 <strong>iOS<\/strong> c\u1ee7a Apple.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-03.jpg\" alt=\"source code 03\" width=\"800\" height=\"450\" class=\"aligncenter size-full wp-image-26357\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-03.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-03-300x169.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-03-768x432.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/source-code-03-750x422.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cach-xem-source-code\"><\/span>C\u00e1ch xem source code<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u1ea1n t\u00f2 m\u00f2 mu\u1ed1n bi\u1ebft m\u1ed9t trang web \u0111\u01b0\u1ee3c &#8220;x\u00e2y d\u1ef1ng&#8221; nh\u01b0 th\u1ebf n\u00e0o ph\u00eda sau giao di\u1ec7n \u0111\u1eb9p m\u1eaft? Vi\u1ec7c xem source code c\u1ee7a m\u1ed9t trang web th\u1ef1c ra kh\u00e1 \u0111\u01a1n gi\u1ea3n v\u00e0 <strong>kh\u00f4ng \u0111\u00f2i h\u1ecfi k\u1ef9 n\u0103ng k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p<\/strong>. H\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh duy\u1ec7t web ph\u1ed5 bi\u1ebfn hi\u1ec7n nay nh\u01b0 Google Chrome, Firefox, Edge \u0111\u1ec1u t\u00edch h\u1ee3p s\u1eb5n c\u00f4ng c\u1ee5 cho ph\u00e9p b\u1ea1n kh\u00e1m ph\u00e1 m\u00e3 ngu\u1ed3n ph\u00eda client m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng.<\/p>\n<p>Tuy nhi\u00ean, c\u00f3 m\u1ed9t \u0111i\u1ec3m quan tr\u1ecdng b\u1ea1n c\u1ea7n nh\u1edb: nh\u1eefng g\u00ec b\u1ea1n c\u00f3 th\u1ec3 xem \u0111\u01b0\u1ee3c ch\u1ee7 y\u1ebfu l\u00e0 <strong>m\u00e3 ngu\u1ed3n ph\u00eda client (client-side)<\/strong>. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m m\u00e3 HTML (x\u00e1c \u0111\u1ecbnh c\u1ea5u tr\u00fac), CSS (\u0111\u1ecbnh d\u1ea1ng giao di\u1ec7n) v\u00e0 JavaScript (t\u1ea1o t\u01b0\u01a1ng t\u00e1c) m\u00e0 tr\u00ecnh duy\u1ec7t t\u1ea3i v\u1ec1 \u0111\u1ec3 hi\u1ec3n th\u1ecb trang. M\u00e3 ngu\u1ed3n ph\u00eda m\u00e1y ch\u1ee7 (server-side) x\u1eed l\u00fd c\u00e1c logic ph\u1ee9c t\u1ea1p h\u01a1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c b\u1ea3o m\u1eadt v\u00e0 b\u1ea1n kh\u00f4ng th\u1ec3 xem tr\u1ef1c ti\u1ebfp t\u1eeb tr\u00ecnh duy\u1ec7t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-Su-dung-chuc-nang-%E2%80%9CView-Page-Source%E2%80%9D-Xem-nguon-trang\"><\/span>1. S\u1eed d\u1ee5ng ch\u1ee9c n\u0103ng &#8220;View Page Source&#8221; (Xem ngu\u1ed3n trang)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y \u0111\u01b0\u1ee3c xem l\u00e0 c\u00e1ch <strong>c\u01a1 b\u1ea3n v\u00e0 nhanh nh\u1ea5t<\/strong> \u0111\u1ec3 xem to\u00e0n b\u1ed9 m\u00e3 HTML g\u1ed1c c\u1ee7a trang web m\u00e0 tr\u00ecnh duy\u1ec7t nh\u1eadn \u0111\u01b0\u1ee3c ban \u0111\u1ea7u t\u1eeb m\u00e1y ch\u1ee7. N\u00f3 s\u1ebd hi\u1ec3n th\u1ecb m\u00e3 ngu\u1ed3n d\u01b0\u1edbi d\u1ea1ng v\u0103n b\u1ea3n thu\u1ea7n t\u00fay, gi\u00fap b\u1ea1n c\u00f3 c\u00e1i nh\u00ecn t\u1ed5ng quan v\u1ec1 c\u1ea5u tr\u00fac n\u1ed9i dung v\u00e0 c\u00e1c th\u1ebb HTML \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n<p>\u0110\u1ec3 th\u1ef1c hi\u1ec7n, b\u1ea1n ch\u1ec9 c\u1ea7n <strong>nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o b\u1ea5t k\u1ef3 khu v\u1ef1c tr\u1ed1ng n\u00e0o<\/strong> tr\u00ean trang web b\u1ea1n mu\u1ed1n xem (l\u01b0u \u00fd tr\u00e1nh nh\u1ea5p v\u00e0o h\u00ecnh \u1ea3nh ho\u1eb7c \u0111\u01b0\u1eddng link) v\u00e0 ch\u1ecdn t\u00f9y ch\u1ecdn c\u00f3 t\u00ean t\u01b0\u01a1ng t\u1ef1 nh\u01b0 &#8220;View Page Source&#8221;, &#8220;Xem ngu\u1ed3n trang&#8221;, ho\u1eb7c &#8220;Hi\u1ec3n th\u1ecb ngu\u1ed3n trang&#8221; t\u1eeb menu ng\u1eef c\u1ea3nh v\u1eeba xu\u1ea5t hi\u1ec7n.<\/p>\n<p>Ngo\u00e0i ra, b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng ph\u00edm t\u1eaft cho nhanh h\u01a1n: <strong>th\u01b0\u1eddng l\u00e0 <\/strong><code><strong>Ctrl+U<\/strong><\/code> tr\u00ean m\u00e1y t\u00ednh Windows ho\u1eb7c Linux, v\u00e0 <code><strong>Cmd+Option+U<\/strong><\/code> tr\u00ean macOS. Ngay l\u1eadp t\u1ee9c, m\u1ed9t tab ho\u1eb7c c\u1eeda s\u1ed5 m\u1edbi s\u1ebd m\u1edf ra, hi\u1ec3n th\u1ecb to\u00e0n b\u1ed9 m\u00e3 HTML c\u1ee7a trang.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-Su-dung-cong-cu-%E2%80%9CInspect%E2%80%9D-hoac-%E2%80%9CInspect-Element%E2%80%9D-Kiem-tra-phan-tu\"><\/span>2. S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 &#8220;Inspect&#8221; ho\u1eb7c &#8220;Inspect Element&#8221; (Ki\u1ec3m tra ph\u1ea7n t\u1eed)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n kh\u00e1m ph\u00e1 chi ti\u1ebft v\u00e0 t\u01b0\u01a1ng t\u00e1c nhi\u1ec1u h\u01a1n, c\u00f4ng c\u1ee5 &#8220;Inspect&#8221; (hay &#8220;Ki\u1ec3m tra&#8221;) l\u00e0 <strong>l\u1ef1a ch\u1ecdn m\u1ea1nh m\u1ebd h\u01a1n h\u1eb3n<\/strong>. C\u00f4ng c\u1ee5 n\u00e0y kh\u00f4ng ch\u1ec9 hi\u1ec3n th\u1ecb m\u00e3 HTML m\u00e0 c\u00f2n cho ph\u00e9p b\u1ea1n xem c\u1ea5u tr\u00fac DOM (Document Object Model &#8211; m\u00f4 h\u00ecnh \u0111\u1ed1i t\u01b0\u1ee3ng t\u00e0i li\u1ec7u) \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt theo th\u1eddi gian th\u1ef1c, c\u00e1c quy t\u1eafc CSS \u0111ang \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho t\u1eebng ph\u1ea7n t\u1eed, v\u00e0 th\u1eadm ch\u00ed l\u00e0 g\u1ee1 l\u1ed7i m\u00e3 JavaScript.<\/p>\n<p>\u0110\u1ec3 m\u1edf c\u00f4ng c\u1ee5 n\u00e0y, b\u1ea1n h\u00e3y <strong>nh\u1ea5p chu\u1ed9t ph\u1ea3i tr\u1ef1c ti\u1ebfp l\u00ean ph\u1ea7n t\u1eed c\u1ee5 th\u1ec3<\/strong> m\u00e0 b\u1ea1n quan t\u00e2m tr\u00ean trang (v\u00ed d\u1ee5: m\u1ed9t n\u00fat b\u1ea5m, m\u1ed9t ti\u00eau \u0111\u1ec1, m\u1ed9t h\u00ecnh \u1ea3nh) v\u00e0 ch\u1ecdn &#8220;Inspect&#8221; ho\u1eb7c &#8220;Inspect Element&#8221; (Ki\u1ec3m tra\/Ki\u1ec3m tra ph\u1ea7n t\u1eed). M\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n d\u00e0nh cho nh\u00e0 ph\u00e1t tri\u1ec3n (Developer Tools) s\u1ebd xu\u1ea5t hi\u1ec7n, th\u01b0\u1eddng n\u1eb1m \u1edf ph\u00eda d\u01b0\u1edbi ho\u1eb7c b\u00ean c\u1ea1nh c\u1eeda s\u1ed5 tr\u00ecnh duy\u1ec7t.<\/p>\n<p>Trong b\u1ea3ng Developer Tools n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 <strong>xem m\u00e3 HTML v\u00e0 CSS t\u01b0\u01a1ng \u1ee9ng<\/strong> v\u1edbi ph\u1ea7n t\u1eed b\u1ea1n \u0111\u00e3 ch\u1ecdn, th\u1eed nghi\u1ec7m vi\u1ec7c thay \u0111\u1ed5i m\u00e3 CSS ho\u1eb7c n\u1ed9i dung HTML \u0111\u1ec3 xem k\u1ebft qu\u1ea3 ngay l\u1eadp t\u1ee9c (ch\u1ec9 l\u00e0 t\u1ea1m th\u1eddi tr\u00ean m\u00e1y b\u1ea1n), ki\u1ec3m tra c\u00e1ch trang web hi\u1ec3n th\u1ecb tr\u00ean c\u00e1c k\u00edch th\u01b0\u1edbc m\u00e0n h\u00ecnh kh\u00e1c nhau, ph\u00e2n t\u00edch t\u1ed1c \u0111\u1ed9 t\u1ea3i trang, v\u00e0 th\u1ef1c hi\u1ec7n nhi\u1ec1u t\u00e1c v\u1ee5 n\u00e2ng cao kh\u00e1c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Luu-y-khi-xem-Source-Code\"><\/span>L\u01b0u \u00fd khi xem Source Code<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u1ea7n l\u01b0u \u00fd r\u1eb1ng m\u00e3 ngu\u1ed3n HTML b\u1ea1n th\u1ea5y qua &#8220;View Page Source&#8221; c\u00f3 th\u1ec3 <strong>kh\u00f4ng ho\u00e0n to\u00e0n gi\u1ed1ng<\/strong> v\u1edbi nh\u1eefng g\u00ec b\u1ea1n \u0111ang th\u1ea5y tr\u00ean m\u00e0n h\u00ecnh n\u1ebfu trang web s\u1eed d\u1ee5ng nhi\u1ec1u JavaScript \u0111\u1ec3 thay \u0111\u1ed5i n\u1ed9i dung sau khi t\u1ea3i xong. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, c\u00f4ng c\u1ee5 &#8220;Inspect&#8221; s\u1ebd ph\u1ea3n \u00e1nh c\u1ea5u tr\u00fac DOM hi\u1ec7n t\u1ea1i ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n<p>Vi\u1ec7c xem source code l\u00e0 m\u1ed9t c\u00e1ch tuy\u1ec7t v\u1eddi \u0111\u1ec3 <strong>h\u1ecdc h\u1ecfi v\u1ec1 thi\u1ebft k\u1ebf web<\/strong>, hi\u1ec3u c\u00e1ch c\u00e1c trang web \u0111\u01b0\u1ee3c c\u1ea5u tr\u00fac v\u00e0 \u0111\u1ecbnh d\u1ea1ng. Tuy nhi\u00ean, h\u00e3y lu\u00f4n nh\u1edb r\u1eb1ng m\u00e3 ngu\u1ed3n c\u0169ng c\u00f3 th\u1ec3 l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a b\u1ea3n quy\u1ec1n. B\u1ea1n n\u00ean s\u1eed d\u1ee5ng vi\u1ec7c xem m\u00e3 ngu\u1ed3n cho m\u1ee5c \u0111\u00edch h\u1ecdc t\u1eadp v\u00e0 nghi\u00ean c\u1ee9u, tr\u00e1nh sao ch\u00e9p ho\u1eb7c s\u1eed d\u1ee5ng l\u1ea1i m\u1ed9t c\u00e1ch tr\u00e1i ph\u00e9p.<\/p>\n<div style=\"background-color: #e6f2ff; border-radius: 10px; padding: 20px; margin: 20px 0; border: 1px solid #b3d9ff;\">\n<p>\u0110\u1ec3 website ho\u1ea1t \u0111\u1ed9ng m\u01b0\u1ee3t m\u00e0, m\u00e3 ngu\u1ed3n c\u1ea7n \u0111\u01b0\u1ee3c tri\u1ec3n khai tr\u00ean n\u1ec1n t\u1ea3ng l\u01b0u tr\u1eef \u1ed5n \u0111\u1ecbnh, t\u1ed1c \u0111\u1ed9 cao. V\u1edbi d\u1ecbch v\u1ee5 <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/interdata.vn\/thue-hosting\/\">thu\u00ea Hosting<\/a> t\u1ea1i InterData, b\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng ch\u1ea1y website tr\u00ean h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7 th\u1ebf h\u1ec7 m\u1edbi, s\u1eed d\u1ee5ng SSD NVMe U.2, b\u0103ng th\u00f4ng r\u1ed9ng v\u00e0 t\u00e0i nguy\u00ean \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i.<\/p>\n<p>N\u1ebfu b\u1ea1n c\u1ea7n hi\u1ec7u n\u0103ng cao h\u01a1n, d\u1ecbch v\u1ee5 <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/interdata.vn\/thue-vps\/\">thu\u00ea VPS gi\u00e1 r\u1ebb<\/a> v\u00e0 <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/interdata.vn\/cloud-server\/\">thu\u00ea Cloud Server gi\u00e1 r\u1ebb<\/a> c\u1ee7a InterData s\u1ebd l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p. H\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng b\u1ed9 x\u1eed l\u00fd AMD EPYC\/Intel Xeon Platinum, c\u00f4ng ngh\u1ec7 \u1ea3o h\u00f3a ti\u00ean ti\u1ebfn, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng linh ho\u1ea1t, ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh cho m\u1ecdi nhu c\u1ea7u t\u1eeb l\u1eadp tr\u00ecnh, ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m \u0111\u1ebfn v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng l\u1edbn.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Source code l\u00e0 n\u1ec1n t\u1ea3ng c\u1ed1t l\u00f5i c\u1ee7a m\u1ecdi ph\u1ea7n m\u1ec1m, \u1ee9ng d\u1ee5ng v\u00e0 website. N\u00f3 \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh v\u00e0 tr\u1ea3i qua qu\u00e1 tr\u00ecnh bi\u00ean d\u1ecbch \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u00e3 m\u00e1y c\u00f3 th\u1ec3 th\u1ef1c thi. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 source code l\u00e0 g\u00ec, t\u1ea7m quan tr\u1ecdng<\/p>\n","protected":false},"author":2,"featured_media":26359,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-26353","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-website"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/26353","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=26353"}],"version-history":[{"count":2,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/26353\/revisions"}],"predecessor-version":[{"id":26371,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/26353\/revisions\/26371"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/26359"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=26353"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=26353"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=26353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}