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源代码：
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<!DOCTYPE html> <html> <body> <script> if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.open("GET","books.xml",false); xmlhttp.send(); xmlDoc=xmlhttp.responseXML; var x=xmlDoc.getElementsByTagName("book")[0]; document.write("Child nodes before removal: "); document.write(x.childNodes.length); x.removeChild(x.childNodes[0]); document.write("<br>Child nodes after removal: "); document.write(x.childNodes.length); </script> </body> </html>
运行结果