给定字符串 test :Shanghai province & beijing

第一：匹配test中是否包含给定的关键字：SHANGHAI|YUNNAN|GUANGZHOU|BEIJING

第二：替换掉包含的关键字为 空字符串

效果如下：

C# 代码如下：

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Text.RegularExpressions; using System.Threading.Tasks; namespace KYC.ConsoleApplication { class Program { static void Main(string[] args) { string test = "Shanghai province & beijing City"; MatchCollection restult = Regex.Matches(test.ToUpper(),"SHANGHAI|YUNNAN|GUANGZHOU|BEIJING"); foreach (Match item in restult) { Console.WriteLine("包含的关键字：" + item.Value); } string result = Regex.Replace(test.ToUpper(),"SHANGHAI|YUNNAN|GUANGZHOU|BEIJING",""); Console.WriteLine("替换后的结果：" + result); Console.Read(); } } }