只能输入数字，逗号，横杠
------解决方案--------------------
eg:
Regex regex = new Regex(@"^[\d,-]*$");
String str = "234,--,";
if (regex.IsMatch(str))
Console.WriteLine("ok");
else
Console.WriteLine("no");
------解决方案--------------------
- C# code
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Text.RegularExpressions;namespace ConsoleApplication1{ class Program { static void Main(string[] args) { string[] yourstr = new string[] { "1,2,3", "1,2,-3", "1-2-3","dd.dd" }; Regex re = new Regex(@"^(\d+[,-])*\d+$"); foreach (string s in yourstr) { Console.WriteLine("{0} {1}",s,re.Match(s).Success); } } }}