c# 标点问题
Session["ESI_EMPNO"] = Session["ESI_EMPNO"] + l_dtDaTable2.Rows[i]["ESI_EMPNO"].ToString();

得到的结果是“9009903090629063”

我想得到“‘9009’，‘9030’，‘9062’，‘9063’”

怎么改？
[解决办法]
%4==0
+","
TrimEnd(',')
[解决办法]
string strNum="90099030906290631";
string res ="";
int i = 0;
while (i+4 < strNum.Length)
{
res += strNum.Substring(i, 4) + ",";
i = i + 4;
}
[解决办法]

string text = @"9009903090629063";
            List<string> list = Regex.Split(text,@"(?<=\G\w{4})(?!$)").ToList();
            /*
             * [0]"9009"string
            [1]"9030"string
            [2]"9062"string
            [3]"9063"string

             */

[解决办法]

引用:

Quote: 引用:

string text = @"9009903090629063";
            List<string> list = Regex.Split(text,@"(?<=\G\w{4})(?!$)").ToList();
            /*
             * [0]"9009"string
            [1]"9030"string
            [2]"9062"string
            [3]"9063"string

             */

帅哥啊，Session["ESI_EMPNO"]=“‘9009’，‘9030’，‘9062’，‘9063’”这个结果怎么得到

=。= list[0] == '9009',list[1],list[2],list[3]……
[解决办法]

string text = @"9009903090629063";
            string s=string.Join( ",",Regex.Split(text,@"(?<=\G\w{4})(?!$)").Select(a=>string.Format("'{0}'",a)));
            //"'9009','9030','9062','9063'"