<!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><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题文档</title></head><body style="text-align:center;margin:200px"><form method="post"> <select name="aaa"> <option value="">==请选择==</option> <option value="get">get</option> <option value="post">post</option> </select> <br /> <input type="button" value="修改提交方法" onclick="aaa()" /> </form></body><script type="text/javascript"> function aaa(){ var a=document.forms[0]; var b=a.aaa.value; a.method=b; alert("当前表单提交的方法是："+b); }</script></html>
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