xx"x\"x"xx如何用正则匹配到"x\"x"

<script type="text/javascript"> 

var str = "xx\"x\\\"x\"xxxx\"x\\\"x\"xx";

var reg = /"(\\.|[^\\"])*"/g;

document.write("源字符串：" + str + "<br />匹配内容：<br /> ");

var arr = str.match(reg);

for(var i=0;i<arr.length;i++)

{

    document.write(arr[i] + "<br />");    

}

</script>

/*-----输出------

源字符串：xx"x\"x"xxxx"x\"x"xx

匹配内容：

"x\"x"

"x\"x"

*/

var regex = /".*"(?=[^"]+)/;

var ipt = "xx\"x\\\"x\"xx"

alert(ipt.match(regex))

var regex = /".*"(?=[^"]+)/;

var ipt = 'xx"x\"x"xx'

alert(ipt.match(regex))

        string ipt = "xx\"x\\\"x\"xx";

        Regex regex = new Regex("\".*\"(?=[^\"]+)");

        Match mc = regex.Match(ipt);

        Response.Write(mc.Value);