string的匹配与截取
有一个字符串，包含若干个回车符"\r\n"
当回车符"\r\n"的个数超过10个时，就把该string在第10个回车符的地方，截取为两个string.

[解决办法]

C# code

string s = "aaa\r\nbb\r\ncc\r\n";            string [] strs =s.Split(new string[]{"\r\n"},StringSplitOptions.None);             s = string.Empty;string s1 = string.Empty;            for (int i = 0; i < strs.Length; i++)            {                if (i < 10)                {                    s += strs[i] + "\r\n";                }                else                {                    s1+strs[i]+"\r\n";                }            }            Console.WriteLine(s);Console.WriteLine(s1);
[解决办法]
足10则为一组...
C# code
            String str = "abc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\nabc\r\n";            String[] temp = str.Split(new String[]{"\r\n"},StringSplitOptions.None);            List<String> list = new List<String>();            String tempStr = "";            for (Int32 i = 0; i < temp.Length; i++)            {                if (i % 10 == 9)                {                    list.Add(tempStr);                    tempStr = "";                }                else                {                    tempStr += temp[i] + "\r\n";                }            }            foreach (String s in list)            {                Console.WriteLine(s);                Console.WriteLine();                Console.WriteLine();            }
[解决办法]
C# code
public class Test    {        public static void Main(string[] args)        {            string str = "asdf\r\njdfd\r\nfaa\r\nasd\r\ndf\r\nfa\r\nsas\r\ndfas\r\ndfsdf\r\naasdf\r\nasdf\r\nsdio\r\nghhsd\r\nfgsg\r\nfgfgasfafasddgfjoifsdf";            int count = 10, indexOf = -1;            for (int i = 0; i < str.Length; i++)            {                if (str[i] == '\r' && i != str.Length - 1 && str[i + 1] == '\n')                    count--;                if (count == 0)                {                    indexOf = i;                    break;                }            }            string subStr1 = str.Substring(0,indexOf);            string subStr2 = str.Substring(indexOf);            Console.WriteLine(subStr1 + " : " + subStr2);            Console.ReadLine();        }    }
[解决办法]
C# code
string str="sfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\rsfdsfs\n\r";            Regex reg=new Regex(@"\n\r");            MatchCollection mc=reg.Matches(str);            int num=0;            string str2=String.Empty;            foreach( Match m in mc )            {                num++;                if(num==10)                {                    str2=str.Substring(m.Index);                }            }