编辑下面的代码:【加编码】
<html> <head> <meta name="keywords" content="HTML, DHTML, CSS, XHTML, JavaScript"> <meta name="description" content="Free Web tutorials"> <meta name="author" content="Hege Refsnes"> <script> function displayResult() { var x=document.getElementsByTagName("meta"); var txt=""; for (var i=0;i<x.length;i++) { txt=txt + "Content of "+(i+1)+". meta tag: "+x[i].content+"<br>"; } document.getElementById("result").innerHTML=txt; } </script> </head> <body> <button type="button" onclick="displayResult()">Display Meta Content</button> <p id="result"></p> </body> </html>
结果: 【此窗口】 帮助?
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