日期:2014-05-16 浏览次数:20460 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> <script type="text/javascript"> function get(){ var paras = document.getElementsByTagName('a2'); alert(paras.length);alert(paras[0].value); } </script> </head> <body> <input type="text" name="a2" value="222222222222222" /> <button onclick="get(); return false;" value="获取" >获取</button> </body> </html>