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<script type="text/javascript">
var fendata="9,45|4,12|9,21|";
var pid='9';
var rstr =new RegExp("("+pid+",\d{1,2}\\|"+")","g")
alert(rstr);
alert(fendata.replace(rstr,''));
alert(fendata);
</script>
<script type="text/javascript">
var fendata="9,45|4,12|9,21|";
var pid='9';
var rstr =new RegExp("/"+pid+",\d{1,2}\\|/","g");
alert(rstr);
alert(fendata.replace(rstr,''));
alert(fendata);
</script>
这样的也不行.<script type="text/javascript">
var fendata="9,45|4,12|9,21|";
var pid='9';
var rstr =new RegExp(pid+",\\d{1,2}\\|","g");
alert(rstr);
alert(fendata.replace(rstr,''));
alert(fendata);
</script>
<script type="text/javascript">
var fendata="9,45|4,12|9,21|";
var pid='9';
var rstr =new RegExp(""+pid+",[0-9]{1,2}[\|]+","g");
alert(rstr);
alert(fendata.replace(rstr,''));
alert(fendata);
</script>