{"id":949,"date":"2025-12-25T15:41:34","date_gmt":"2025-12-25T07:41:34","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=949"},"modified":"2025-12-25T15:41:34","modified_gmt":"2025-12-25T07:41:34","slug":"html%e6%96%87%e6%a1%a3%e7%b1%bb%e5%9e%8b%e5%a3%b0%e6%98%8e%e6%a0%87%e7%ad%be%ef%bc%88%ef%bc%89-4","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2025\/12\/25\/html%e6%96%87%e6%a1%a3%e7%b1%bb%e5%9e%8b%e5%a3%b0%e6%98%8e%e6%a0%87%e7%ad%be%ef%bc%88%ef%bc%89-4\/","title":{"rendered":"HTML\u6587\u6863\u7c7b\u578b\u58f0\u660e\u6807\u7b7e\uff08\uff09"},"content":{"rendered":"\n<p>\u4e0b\u9762\u662f\u4e00\u7bc7<strong>\u5165\u95e8\u6e05\u6670 + \u53ef\u76f4\u63a5\u4f5c\u4e3a\u5b66\u4e60\u7b14\u8bb0\u6216\u535a\u5ba2\u5185\u5bb9<\/strong>\u7684\u8bf4\u660e\uff0c\u4e13\u95e8\u8bb2\u6e05<br>\ud83d\udc49 <strong>HTML \u6587\u6863\u7c7b\u578b\u58f0\u660e\u6807\u7b7e\uff08DOCTYPE\uff09\u662f\u4ec0\u4e48\u3001\u600e\u4e48\u5199\u3001\u6709\u4ec0\u4e48\u7528<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">HTML \u6587\u6863\u7c7b\u578b\u58f0\u660e\u6807\u7b7e\uff08DOCTYPE\uff09\u8be6\u89e3<\/h1>\n\n\n\n<p>\u5728 HTML \u6587\u6863\u7684\u6700\u9876\u90e8\uff0c\u51e0\u4e4e\u90fd\u4f1a\u770b\u5230\u8fd9\u6837\u4e00\u884c\u4ee3\u7801\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;!DOCTYPE html&gt;\n\n<\/pre><\/div>\n\n\n<p>\u5b83\u5c31\u662f <strong>HTML \u6587\u6863\u7c7b\u578b\u58f0\u660e\uff08Document Type Declaration\uff0c\u7b80\u79f0 DOCTYPE\uff09<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001DOCTYPE \u662f\u4ec0\u4e48\uff1f<\/h2>\n\n\n\n<p><strong>DOCTYPE \u4e0d\u662f HTML \u6807\u7b7e<\/strong>\uff0c\u800c\u662f\u4e00\u6761<strong>\u6d4f\u89c8\u5668\u6307\u4ee4<\/strong>\uff0c\u7528\u6765\u544a\u8bc9\u6d4f\u89c8\u5668\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udc49 \u5f53\u524d\u9875\u9762\u4f7f\u7528\u7684\u662f\u54ea\u4e00\u79cd HTML \u89c4\u8303<br>\ud83d\udc49 \u6d4f\u89c8\u5668\u5e94\u8be5\u7528\u54ea\u79cd\u6a21\u5f0f\u6765\u89e3\u6790\u548c\u6e32\u67d3\u9875\u9762<\/p>\n<\/blockquote>\n\n\n\n<p>\ud83d\udccc <strong>\u4f4d\u7f6e\u8981\u6c42<\/strong><br>DOCTYPE <strong>\u5fc5\u987b\u5199\u5728 HTML \u6587\u6863\u7684\u7b2c\u4e00\u884c<\/strong>\uff0c\u5728 <code>&lt;html&gt;<\/code> \u6807\u7b7e\u4e4b\u524d\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001DOCTYPE \u7684\u4f5c\u7528\uff08\u975e\u5e38\u91cd\u8981\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1\ufe0f\u20e3 \u544a\u8bc9\u6d4f\u89c8\u5668\u4f7f\u7528\u201c\u6807\u51c6\u6a21\u5f0f\u201d<\/h3>\n\n\n\n<p>\u6709\u4e86 DOCTYPE\uff0c\u6d4f\u89c8\u5668\u4f1a\u4f7f\u7528\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6807\u51c6\u6a21\u5f0f\uff08Standards Mode\uff09<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u6ca1\u6709 DOCTYPE \u6216\u5199\u9519\uff0c\u6d4f\u89c8\u5668\u53ef\u80fd\u8fdb\u5165\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u602a\u5f02\u6a21\u5f0f\uff08Quirks Mode\uff09<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2\ufe0f\u20e3 \u9632\u6b62\u9875\u9762\u6837\u5f0f\u9519\u4e71<\/h3>\n\n\n\n<p>\u602a\u5f02\u6a21\u5f0f\u4e0b\u53ef\u80fd\u51fa\u73b0\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CSS \u76d2\u6a21\u578b\u8ba1\u7b97\u9519\u8bef<\/li>\n\n\n\n<li>margin \/ padding \u8868\u73b0\u5f02\u5e38<\/li>\n\n\n\n<li>\u4e0d\u540c\u6d4f\u89c8\u5668\u663e\u793a\u4e0d\u4e00\u81f4<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udccc <strong>\u5f88\u591a\u5e03\u5c40\u95ee\u9898\uff0c\u6839\u6e90\u5c31\u662f DOCTYPE \u5199\u9519\u6216\u7f3a\u5931<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001HTML5 \u7684 DOCTYPE\uff08\u63a8\u8350\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 \u6b63\u786e\u5199\u6cd5\uff08HTML5\uff09<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;!DOCTYPE html&gt;\n\n<\/pre><\/div>\n\n\n<p>\u7279\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5199\u6cd5\u6781\u7b80<\/li>\n\n\n\n<li>\u5411\u540e\u517c\u5bb9<\/li>\n\n\n\n<li>\u6240\u6709\u73b0\u4ee3\u6d4f\u89c8\u5668\u90fd\u652f\u6301<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udccc <strong>\u8fd9\u662f\u76ee\u524d\u552f\u4e00\u63a8\u8350\u7684\u5199\u6cd5<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u65e7\u7248 HTML \u7684 DOCTYPE\uff08\u4e86\u89e3\u5373\u53ef\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">HTML 4.01 Strict<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;!DOCTYPE HTML PUBLIC &quot;-\/\/W3C\/\/DTD HTML 4.01\/\/EN&quot;\n&quot;http:\/\/www.w3.org\/TR\/html4\/strict.dtd&quot;&gt;\n\n<\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">HTML 4.01 Transitional<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;!DOCTYPE HTML PUBLIC &quot;-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN&quot;\n&quot;http:\/\/www.w3.org\/TR\/html4\/loose.dtd&quot;&gt;\n\n<\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">XHTML 1.0 Strict<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;!DOCTYPE html PUBLIC &quot;-\/\/W3C\/\/DTD XHTML 1.0 Strict\/\/EN&quot;\n&quot;http:\/\/www.w3.org\/TR\/xhtml1\/DTD\/xhtml1-strict.dtd&quot;&gt;\n\n<\/pre><\/div>\n\n\n<p>\u2757 \u8fd9\u4e9b\u5199\u6cd5<strong>\u73b0\u5728\u51e0\u4e4e\u4e0d\u7528<\/strong>\uff0c\u53ea\u5728\u7ef4\u62a4\u8001\u9879\u76ee\u65f6\u4f1a\u89c1\u5230\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001DOCTYPE \u4e0e\u6d4f\u89c8\u5668\u6e32\u67d3\u6a21\u5f0f\u5173\u7cfb<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>DOCTYPE \u60c5\u51b5<\/th><th>\u6d4f\u89c8\u5668\u6a21\u5f0f<\/th><\/tr><\/thead><tbody><tr><td>\u6b63\u786e\u7684 <code>&lt;!DOCTYPE html&gt;<\/code><\/td><td>\u6807\u51c6\u6a21\u5f0f<\/td><\/tr><tr><td>\u7f3a\u5931 DOCTYPE<\/td><td>\u602a\u5f02\u6a21\u5f0f<\/td><\/tr><tr><td>\u9519\u8bef \/ \u4e0d\u5b8c\u6574<\/td><td>\u8fd1\u602a\u5f02\u6a21\u5f0f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u5728\u6d4f\u89c8\u5668 DevTools \u4e2d\u67e5\u770b\u5f53\u524d\u6a21\u5f0f\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\ndocument.compatMode\n\n<\/pre><\/div>\n\n\n<p>\u8fd4\u56de\u7ed3\u679c\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>CSS1Compat<\/code> \u2192 \u6807\u51c6\u6a21\u5f0f<\/li>\n\n\n\n<li><code>BackCompat<\/code> \u2192 \u602a\u5f02\u6a21\u5f0f<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001DOCTYPE \u5e38\u89c1\u9519\u8bef\u793a\u4f8b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c \u5199\u5728 <code>&lt;html&gt;<\/code> \u540e\u9762<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;html&gt;\n&amp;lt;!DOCTYPE html&gt;\n\n<\/pre><\/div>\n\n\n<p>\u274c \u9519\u8bef\uff1a\u6d4f\u89c8\u5668\u4e0d\u4f1a\u8bc6\u522b<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c \u5927\u5c0f\u5199\u6216\u683c\u5f0f\u9519\u8bef<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;!doctype HTML&gt;\n\n<\/pre><\/div>\n\n\n<p>\u867d\u7136\u591a\u6570\u6d4f\u89c8\u5668\u80fd\u5bb9\u5fcd\uff0c\u4f46<strong>\u4e0d\u89c4\u8303<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c \u5b8c\u5168\u7f3a\u5931<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;html&gt;\n&amp;lt;head&gt;...&amp;lt;\/head&gt;\n\n<\/pre><\/div>\n\n\n<p>\u26a0\ufe0f \u6781\u6613\u5f15\u53d1\u5e03\u5c40 Bug<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e03\u3001\u4e00\u4e2a\u5b8c\u6574\u3001\u89c4\u8303\u7684 HTML5 \u9875\u9762\u7ed3\u6784<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;!DOCTYPE html&gt;\n&amp;lt;html lang=&quot;zh-CN&quot;&gt;\n&amp;lt;head&gt;\n  &amp;lt;meta charset=&quot;UTF-8&quot;&gt;\n  &amp;lt;title&gt;DOCTYPE \u793a\u4f8b&amp;lt;\/title&gt;\n&amp;lt;\/head&gt;\n&amp;lt;body&gt;\n  &amp;lt;h1&gt;Hello HTML5&amp;lt;\/h1&gt;\n&amp;lt;\/body&gt;\n&amp;lt;\/html&gt;\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516b\u3001\u9762\u8bd5\u9ad8\u9891\u95ee\u6cd5\uff08\u4e00\u53e5\u8bdd\u56de\u7b54\uff09<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>DOCTYPE \u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p><strong>\u6807\u51c6\u7b54\u6848\uff1a<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>DOCTYPE \u7528\u4e8e\u58f0\u660e HTML \u6587\u6863\u7c7b\u578b\uff0c\u544a\u8bc9\u6d4f\u89c8\u5668\u4f7f\u7528\u6807\u51c6\u6a21\u5f0f\u89e3\u6790\u9875\u9762\uff0c\u907f\u514d\u8fdb\u5165\u602a\u5f02\u6a21\u5f0f\uff0c\u4ece\u800c\u4fdd\u8bc1\u9875\u9762\u5728\u4e0d\u540c\u6d4f\u89c8\u5668\u4e2d\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e5d\u3001\u603b\u7ed3<\/h2>\n\n\n\n<p>\u2714 DOCTYPE \u662f\u6d4f\u89c8\u5668\u89e3\u6790\u6307\u4ee4\uff0c\u4e0d\u662f\u6807\u7b7e<br>\u2714 \u5fc5\u987b\u5199\u5728\u6587\u6863\u7b2c\u4e00\u884c<br>\u2714 HTML5 \u63a8\u8350\u5199\u6cd5\u53ea\u6709\u4e00\u4e2a\uff1a<code>&lt;!DOCTYPE html&gt;<\/code><br>\u2714 \u7f3a\u5931\u6216\u9519\u8bef\u4f1a\u5bfc\u81f4 CSS \u548c\u5e03\u5c40\u95ee\u9898<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0b\u9762\u662f\u4e00\u7bc7\u5165\u95e8\u6e05\u6670 + \u53ef\u76f4\u63a5\u4f5c\u4e3a\u5b66\u4e60\u7b14\u8bb0\u6216\u535a\u5ba2\u5185\u5bb9\u7684\u8bf4\u660e\uff0c\u4e13\u95e8\u8bb2\u6e05\ud83d\udc49 HTML&#8230; <a class=\"more-link\" href=\"https:\/\/www.52runoob.com\/index.php\/2025\/12\/25\/html%e6%96%87%e6%a1%a3%e7%b1%bb%e5%9e%8b%e5%a3%b0%e6%98%8e%e6%a0%87%e7%ad%be%ef%bc%88%ef%bc%89-4\/\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-949","post","type-post","status-publish","format-standard","hentry","category-12"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/949","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/comments?post=949"}],"version-history":[{"count":1,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/949\/revisions"}],"predecessor-version":[{"id":950,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/949\/revisions\/950"}],"wp:attachment":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/media?parent=949"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/categories?post=949"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/tags?post=949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}