string temp = "上海市徐汇区桂林路158号1202室";
            string[] result = Regex.Split(temp,@"(?<=\d+)(?=\D)|(?<=\D+)(?=\d)");
            /*
             *         [0]    "上海市徐汇区桂林路"    string
        [1]    "158"    string
        [2]    "号"    string
        [3]    "1202"    string
        [4]    "室"    string

             */

------解决方案--------------------

别人给留言的转
1楼 simadi 2012-07-18 09:35发表 [回复] [引用] [举报] [删除]何必那么麻烦??


var a = "d899er670sdDSf0dfs900就好9dsf";
var b = Regex.Replace(a, @"[^\d]+", "");//去除非数字
//var b = Regex.Replace(a, @"[^a-zA-Z]+", "");//去除非字母
//var b = Regex.Replace(a, @"[^\u4e00-\u9fa5]+", "");//去除非汉字
MessageBox.Show(b);