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编辑您的代码：
<html> <head> <script type="text/javascript"> function whichElement(e) { var targ if (!e) var e = window.event if (e.target) targ = e.target else if (e.srcElement) targ = e.srcElement if (targ.nodeType == 3) // defeat Safari bug targ = targ.parentNode var tname tname=targ.tagName alert("You clicked on a " + tname + " element.") } </script> </head> <body onmouseup="whichElement(event)"> <p>Click somewhere in the document. An alert box will alert the tag name of the element you clicked on.</p> <h3>This is a header</h3> <p>This is a paragraph</p> <img src="../i/eg_mouse2.jpg" alt="" /> </body> </html>
查看结果: