怎么样用正则替换我这样句子

Question

<script      language="javascript">  
var a='HirePay   ,HireProvideMeal       ,'
alert(a.replace(/([^,]*?),/g,"$1=   @$1  "))</script> 

Answer 1

<textarea id="txt">
HirePay   ,
HireProvideMeal    ,
</textarea>
<input type="button" onclick="replace()" value="替换" />
<script>
function replace(){
    var reg=/,[^\n]*/g;
    var txt=document.getElementById("txt");
    alert(txt.innerHTML.replace(/([^,]*?),/g,"$1=   @$1"));
}
</script>

Answer 2

<textarea id="txt">
HirePay   ,
HireProvideMeal    ,
</textarea>
<input type="button" onclick="replace()" value="替换" />
<script>
function replace(){
    var reg=/,[^\n]*/g;
    var txt=document.getElementById("txt");
    alert(txt.innerHTML.replace(/([^,]*?),/g,"$1=@$1"));
}
</script>