日期:2014-05-16 浏览次数:20379 次
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> </head> <body> <table> <tr> <td> </td> </tr> </table> <script> var trs = document.getElementsByTagName("tr"); alert(trs[0]); </script> </body> </html>
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