编辑下面的代码:【加编码】
<html> <body> <p>Hello World!</p> <p>The DOM is very useful!</p> <p>This example demonstrates the <b>getElementsByTagName</b> method.</p> <script> x=document.getElementsByTagName("p"); document.write("Text of first paragraph: " + x[0].innerHTML); </script> </body></html>
结果: 【此窗口】 帮助?
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