Replace asp下怎么用？

在ASP中Replace的语法为：Replace("字符串","要被替代的字符串","替代后的字符串","开始字符位置","替换次数")
例如下面用vbscript做的（asp也是适用的）：
<script language="vbscript">
a="test{qqq}deesdfafd{qqq}"
a=replace(a,"{qqq}","{ppp}",1,1)
document.write a
</script>