using System; using System.Collections.Generic; using System.Text; namespace split与join字符串处理 { class Program { static void Main(string[] args) { string s = "123--23--34--3434-444------2"; string[] c = s.Split(new char[] {'-'}, StringSplitOptions.RemoveEmptyEntries); string ss = string.Join("-",c); Console.WriteLine(ss);//去掉字符串重复 输出结果123-23-34-3434-444-2 Console.ReadKey(); } } }