{"id":151,"date":"2025-11-24T14:48:10","date_gmt":"2025-11-24T06:48:10","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=151"},"modified":"2025-11-24T14:48:10","modified_gmt":"2025-11-24T06:48:10","slug":"xml%e5%ae%9e%e4%be%8b%e6%95%99%e7%a8%8bnodename%e3%80%81nodevalue%e5%92%8cnodetype%e5%b1%9e%e6%80%a7","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2025\/11\/24\/xml%e5%ae%9e%e4%be%8b%e6%95%99%e7%a8%8bnodename%e3%80%81nodevalue%e5%92%8cnodetype%e5%b1%9e%e6%80%a7\/","title":{"rendered":"XML\u5b9e\u4f8b\u6559\u7a0b:nodeName\u3001nodeValue\u548cnodeType\u5c5e\u6027"},"content":{"rendered":"\n<p>\u4e0b\u9762\u7ed9\u4f60\u6574\u7406\u4e00\u4efd <strong>XML \u5b9e\u4f8b\u6559\u7a0b\uff1anodeName\u3001nodeValue \u548c nodeType \u5c5e\u6027<\/strong>\uff0c\u901a\u8fc7\u6982\u5ff5\u89e3\u6790\u3001\u8bed\u6cd5\u793a\u4f8b\u548c\u5b9e\u6218\u6f14\u793a\uff0c\u5e2e\u52a9\u4f60\u7406\u89e3\u8fd9\u4e9b\u6838\u5fc3 DOM \u8282\u70b9\u5c5e\u6027\u7684\u4f5c\u7528\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udcd8 \u4e00\u3001XML \u8282\u70b9\u57fa\u7840<\/h1>\n\n\n\n<p>\u5728 <strong>DOM\uff08Document Object Model\uff09<\/strong> \u4e2d\uff0cXML \u6587\u6863\u88ab\u8868\u793a\u4e3a\u6811\u72b6\u7ed3\u6784\uff0c\u6bcf\u4e2a\u5143\u7d20\u3001\u5c5e\u6027\u3001\u6587\u672c\u8282\u70b9\u3001\u6ce8\u91ca\u7b49\u90fd\u662f <strong>\u8282\u70b9\uff08Node\uff09<\/strong>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8282\u70b9\u7c7b\u578b<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5143\u7d20\u8282\u70b9 (<code>ELEMENT_NODE<\/code>)<\/li>\n\n\n\n<li>\u5c5e\u6027\u8282\u70b9 (<code>ATTRIBUTE_NODE<\/code>)<\/li>\n\n\n\n<li>\u6587\u672c\u8282\u70b9 (<code>TEXT_NODE<\/code>)<\/li>\n\n\n\n<li>\u6ce8\u91ca\u8282\u70b9 (<code>COMMENT_NODE<\/code>)<\/li>\n\n\n\n<li>\u6587\u6863\u8282\u70b9 (<code>DOCUMENT_NODE<\/code>) \u7b49<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u6bcf\u4e2a\u8282\u70b9\u90fd\u5305\u542b\u4e00\u4e9b\u901a\u7528\u5c5e\u6027\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u662f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>nodeName<\/code><\/li>\n\n\n\n<li><code>nodeValue<\/code><\/li>\n\n\n\n<li><code>nodeType<\/code><\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udcd8 \u4e8c\u3001nodeName \u5c5e\u6027<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f5c\u7528<\/strong>\uff1a\u8fd4\u56de\u8282\u70b9\u7684\u540d\u79f0<\/li>\n\n\n\n<li><strong>\u9002\u7528\u8282\u70b9\u7c7b\u578b<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5143\u7d20\u8282\u70b9\uff1a\u8fd4\u56de\u6807\u7b7e\u540d<\/li>\n\n\n\n<li>\u5c5e\u6027\u8282\u70b9\uff1a\u8fd4\u56de\u5c5e\u6027\u540d<\/li>\n\n\n\n<li>\u6587\u672c\u8282\u70b9\uff1a\u8fd4\u56de <code>#text<\/code><\/li>\n\n\n\n<li>\u6ce8\u91ca\u8282\u70b9\uff1a\u8fd4\u56de <code>#comment<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nlet xmlString = `\n&amp;lt;book id=&quot;b001&quot;&gt;\n    &amp;lt;title&gt;XML \u5165\u95e8&amp;lt;\/title&gt;\n    &amp;lt;author&gt;\u963f\u6770&amp;lt;\/author&gt;\n&amp;lt;\/book&gt;`;\nlet parser = new DOMParser();\nlet xmlDoc = parser.parseFromString(xmlString, &quot;text\/xml&quot;);\n\nlet bookNode = xmlDoc.getElementsByTagName(&quot;book&quot;)&#x5B;0];\nconsole.log(bookNode.nodeName); \/\/ \u8f93\u51fa &quot;book&quot;\n\nlet titleNode = xmlDoc.getElementsByTagName(&quot;title&quot;)&#x5B;0];\nconsole.log(titleNode.nodeName); \/\/ \u8f93\u51fa &quot;title&quot;\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udcd8 \u4e09\u3001nodeValue \u5c5e\u6027<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f5c\u7528<\/strong>\uff1a\u8fd4\u56de\u6216\u8bbe\u7f6e\u8282\u70b9\u7684\u503c<\/li>\n\n\n\n<li><strong>\u8bf4\u660e<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5143\u7d20\u8282\u70b9\uff1a<code>nodeValue<\/code> \u4e3a <code>null<\/code><\/li>\n\n\n\n<li>\u5c5e\u6027\u8282\u70b9\uff1a<code>nodeValue<\/code> \u4e3a\u5c5e\u6027\u503c<\/li>\n\n\n\n<li>\u6587\u672c\u8282\u70b9\uff1a<code>nodeValue<\/code> \u4e3a\u6587\u672c\u5185\u5bb9<\/li>\n\n\n\n<li>\u6ce8\u91ca\u8282\u70b9\uff1a<code>nodeValue<\/code> \u4e3a\u6ce8\u91ca\u5185\u5bb9<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\/\/ \u6587\u672c\u8282\u70b9\nlet titleTextNode = titleNode.firstChild;\nconsole.log(titleTextNode.nodeValue); \/\/ \u8f93\u51fa &quot;XML \u5165\u95e8&quot;\n\n\/\/ \u5c5e\u6027\u8282\u70b9\nlet idAttr = bookNode.getAttributeNode(&quot;id&quot;);\nconsole.log(idAttr.nodeValue); \/\/ \u8f93\u51fa &quot;b001&quot;\n\n\/\/ \u4fee\u6539\u6587\u672c\u5185\u5bb9\ntitleTextNode.nodeValue = &quot;XML \u57fa\u7840\u6559\u7a0b&quot;;\nconsole.log(titleTextNode.nodeValue); \/\/ \u8f93\u51fa &quot;XML \u57fa\u7840\u6559\u7a0b&quot;\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udcd8 \u56db\u3001nodeType \u5c5e\u6027<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f5c\u7528<\/strong>\uff1a\u8fd4\u56de\u8282\u70b9\u7684\u7c7b\u578b\uff08\u4e00\u4e2a\u6574\u6570\uff09<\/li>\n\n\n\n<li><strong>\u5e38\u7528\u7c7b\u578b<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>nodeType \u503c<\/th><th>\u542b\u4e49<\/th><\/tr><\/thead><tbody><tr><td>1<\/td><td>\u5143\u7d20\u8282\u70b9\uff08ELEMENT_NODE\uff09<\/td><\/tr><tr><td>2<\/td><td>\u5c5e\u6027\u8282\u70b9\uff08ATTRIBUTE_NODE\uff09<\/td><\/tr><tr><td>3<\/td><td>\u6587\u672c\u8282\u70b9\uff08TEXT_NODE\uff09<\/td><\/tr><tr><td>8<\/td><td>\u6ce8\u91ca\u8282\u70b9\uff08COMMENT_NODE\uff09<\/td><\/tr><tr><td>9<\/td><td>\u6587\u6863\u8282\u70b9\uff08DOCUMENT_NODE\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nconsole.log(bookNode.nodeType);          \/\/ \u8f93\u51fa 1\nconsole.log(titleTextNode.nodeType);     \/\/ \u8f93\u51fa 3\nconsole.log(idAttr.nodeType);            \/\/ \u8f93\u51fa 2\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udcd8 \u4e94\u3001\u7ed3\u5408\u793a\u4f8b\u7efc\u5408\u4f7f\u7528<\/h1>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nlet xmlString = `\n&amp;lt;book id=&quot;b001&quot;&gt;\n    &amp;lt;title&gt;XML \u5165\u95e8&amp;lt;\/title&gt;\n    &amp;lt;author&gt;\u963f\u6770&amp;lt;\/author&gt;\n&amp;lt;\/book&gt;`;\nlet parser = new DOMParser();\nlet xmlDoc = parser.parseFromString(xmlString, &quot;text\/xml&quot;);\n\nlet bookNode = xmlDoc.getElementsByTagName(&quot;book&quot;)&#x5B;0];\nconsole.log(&quot;\u8282\u70b9\u540d\u79f0:&quot;, bookNode.nodeName);    \/\/ book\nconsole.log(&quot;\u8282\u70b9\u7c7b\u578b:&quot;, bookNode.nodeType);   \/\/ 1\n\nlet idAttr = bookNode.getAttributeNode(&quot;id&quot;);\nconsole.log(&quot;\u5c5e\u6027\u540d\u79f0:&quot;, idAttr.nodeName);      \/\/ id\nconsole.log(&quot;\u5c5e\u6027\u503c:&quot;, idAttr.nodeValue);       \/\/ b001\nconsole.log(&quot;\u5c5e\u6027\u7c7b\u578b:&quot;, idAttr.nodeType);      \/\/ 2\n\nlet titleNode = xmlDoc.getElementsByTagName(&quot;title&quot;)&#x5B;0];\nlet titleTextNode = titleNode.firstChild;\nconsole.log(&quot;\u6587\u672c\u5185\u5bb9:&quot;, titleTextNode.nodeValue); \/\/ XML \u5165\u95e8\nconsole.log(&quot;\u6587\u672c\u8282\u70b9\u7c7b\u578b:&quot;, titleTextNode.nodeType); \/\/ 3\n\n<\/pre><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u89e3\u6790\u903b\u8f91<\/strong>\uff1a\n<ol class=\"wp-block-list\">\n<li><code>nodeName<\/code>\uff1a\u83b7\u53d6\u8282\u70b9\u6216\u5c5e\u6027\u7684\u540d\u79f0<\/li>\n\n\n\n<li><code>nodeValue<\/code>\uff1a\u83b7\u53d6\u8282\u70b9\u503c\uff08\u6587\u672c\u6216\u5c5e\u6027\u503c\uff09<\/li>\n\n\n\n<li><code>nodeType<\/code>\uff1a\u533a\u5206\u8282\u70b9\u7c7b\u578b<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udcd8 \u516d\u3001\u603b\u7ed3<\/h1>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>nodeName<\/strong>\uff1a\u8282\u70b9\u7684\u540d\u79f0\uff08\u5143\u7d20\u6807\u7b7e\u540d\u3001\u5c5e\u6027\u540d\u3001\u6587\u672c\u6216\u6ce8\u91ca\u6807\u8bc6\uff09<\/li>\n\n\n\n<li><strong>nodeValue<\/strong>\uff1a\u8282\u70b9\u7684\u503c\uff08\u6587\u672c\u5185\u5bb9\u6216\u5c5e\u6027\u503c\uff09\uff0c\u5143\u7d20\u8282\u70b9\u4e00\u822c\u4e3a <code>null<\/code><\/li>\n\n\n\n<li><strong>nodeType<\/strong>\uff1a\u8282\u70b9\u7c7b\u578b\u7684\u6574\u6570\u8868\u793a\uff0c\u65b9\u4fbf\u7a0b\u5e8f\u5224\u65ad<\/li>\n\n\n\n<li>\u7ed3\u5408\u4f7f\u7528\u53ef\u4ee5<strong>\u904d\u5386\u3001\u8bfb\u53d6\u548c\u4fee\u6539 XML \u6587\u6863\u5185\u5bb9<\/strong><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0b\u9762\u7ed9\u4f60\u6574\u7406\u4e00\u4efd XML \u5b9e\u4f8b\u6559\u7a0b\uff1anodeName\u3001nodeValue \u548c n&#8230; 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