<script language="javascript">
<!--
String.prototype.replaceAll = stringReplaceAll;
function stringReplaceAll(AFindText,ARepText){
raRegExp = new RegExp(AFindText,"g");
return this.replace(raRegExp,ARepText)
}
var content = "%sfasf%sfd%asdfsadf%1111%"
// 把 所有的 % 替換為 #
document.write(content.replaceAll("%","#"));
//-->
</script>