日期:2014-05-18 浏览次数:20990 次
string tempStr = File.ReadAllText(@"C:\Documents and Settings\Administrator\桌面\Test.txt", Encoding.GetEncoding("GB2312"));//读取tx
string pattern = @"(?i)(?<=\d+ +)(\d+\s+){3}";
string[] ss = Regex.Matches(tempStr, pattern).Cast<Match>().Select(a => a.Value).Distinct().ToArray();
/*
* [0] "12 3 17 " string
[1] "12 3 18 " string
[2] "12 10 19 " string
[3] "02 3 18 " string
[4] "02 12 18 " string
*/