在zzz.html里head区加上这么一段代码:
<META HTTP-EQUIV="pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate">
<META HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT">
清除临时缓存
<META HTTP-EQUIV="pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate">
<META HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT">
清除临时缓存
<HEAD>
<TITLE></TITLE>
</HEAD>
<BODY>
<script language="Javascript">
document.write("<form name=form1 method=post action='form123.php'>");document.write("<input type='hidden' name=abcd value='1111'>");document.write("<input type=submit value=提交>");
document.write("</form>");
</script>
</BODY>
</HTML>
第一次提交时隐藏域abcd的value值已经修改,第二次提交时并未修改隐藏域abcd的value值,但提交后提交的是第一次修改的值.若何!!!
这样的写法已经将其值定死了, 怎么清除缓存都没有的了.