求一个正则表达式

[zhix88]

"93257":{"mediaid":"93257","name_cn":"\u604b\u7231\u901a\u544a","actor":"\u738b\u529b\u5b8f \u5218\u4ea6\u83f2 \u9648\u6c49\u5178","director":"\u738b\u529b\u5b8f","args":"93257","fsps":{"one":"fsp:\/\/9f09670628f2a707ba44539ff6ecb0a034790718|auto=4|c=dy,xj,hy|m=93257|torrent=http:\/\/www.btstream.org\/fsp\/2010-09-09\/18524595_1284012305_458.fsp","pid":"557271","mult":[{"url":"fsp:\/\/9f09670628f2a707ba44539ff6ecb0a034790718|auto=4|c=dy,xj,hy|m=93257|torrent=http:\/\/www.btstream.org\/fsp\/2010-09-09\/18524595_1284012305_458.fsp","name":"\u604b\u7231\u901a\u544a","pid":"557271","args":"93257_557271"}]},"cates":"\u559c\u5267 \u7231\u60c5","releaseinfo":"2010\u5e748\u670812\u65e5 \u4e2d\u56fd","pplots":"\u7537\u4e3b\u89d2\u675c\u660e\u6c49\u4ece\u5c0f\u5c31\u662f\u4e00\u4e2a\u8d85\u7ea7\u5de8\u661f\uff0c\u4ed6\u9690\u85cf\u8eab\u4efd\u5316\u540d\u963f\u5fb7\u548c\u597d\u53cb\u9b4f\u5fd7\u67cf\u51fa\u884c\uff0c\u8c01\u77e5\u88ab\u4e0a\u6d77\u97f3\u4e50\u5b66\u9662\u6c11\u4e50\u7cfb\u7684\u5973\u5b69\u5b8b\u6653\u9752\u5438\u5f15\uff0c\u4e8e\u662f\u4e24...","mtype":"movie","imagefilepath_s":"http:\/\/img1.funshion.com\/attachment\/new_images\/2010\/08-02\/19069462_1280715838_524_s.jpg","tactics":"6","issue":"noissue","ishd":0,"torrentdesc":""},
"2652":{"mediaid":"2652","name_cn":"\u604b\u7231\u8fdb\u884c\u65f6","actor":"\u6797\u79c0\u6676 \u91d1\u6765\u6c85 \u674e\u7f8e\u6dd1","director":"\u674e\u8a00\u7199","args":"2652","fsps":{"one":"fsp:\/\/a418aace24ed38bd5abc2e0283524a3b30290ff4|auto=4|c=dy,aq,hg|m=2652|torrent=http:\/\/www.btstream.org\/fsp\/2008-11-22\/4629932_1227336336_704.fsp","pid":"499315","mult":[{"url":"fsp:\/\/a418aace24ed38bd5abc2e0283524a3b30290ff4|auto=4|c=dy,aq,hg|m=2652|torrent=http:\/\/www.btstream.org\/fsp\/2008-11-22\/4629932_1227336336_704.fsp","name":"\u604b\u7231\u8fdb\u884c\u65f6","pid":"499315","args":"2652_499315"}]},"cates":"\u7231\u60c5 \u4f26\u7406","releaseinfo":"2003\u5e7411\u670824\u65e5 \u97e9\u56fd","pplots":"\u5f53\u5be1\u5987\u5988\u5988\u8bf4\u201c\u6765\uff0c\u4eb2\u4eb2\u201d\u7684\u65f6\u5019\uff0c\u603b\u662f\u8bf4\u5988\u5988\u201c\u601d\u6625\u4e86\u5427\uff0c\u627e\u4e2a\u7537\u670b\u53cb\u5427\u201d\u7684\u5973\u9ad8\u4e2d\u751f\u654f\u96c5\u3002\u5373\u4f1a\u559d\u5564\u9152\u8fd8\u80cc\u7740\u5988\u5988\u5077\u5077\u62bd\u70df\uff0c\u9177\u7231...","mtype":"movie","imagefilepath_s":"http:\/\/img1.funshion.com\/attachment\/images\/20081122\/4\/5F2A9FF97DB957DA964C537259F6718E_s.jpg","tactics":"0","issue":"noissue","ishd":0,"torrentdesc":""},

如上字符串，需要获取格式为：
"3-5位数字":{0-3组{}}

请前辈指点！

[-过客-]

try...

Regex reg = new Regex(@"""\d{3,5}"":\{(?>\{(?<o>)|\}(?<-o>)|[^{}]*)*(?(o)(?!))\}");
MatchCollection mc = reg.Matches(yourStr);
foreach (Match m in mc)
{
    richTextBox2.Text += m.Value + "\n----------------\n";
}

[zhix88]

谢谢您的快速解答！