c# list 删除重复元素

输入的数组格式:

 strinput=”001,002,003,001,001,003,005”;

要求输出的格式:

 stroutput=”001,002,003,005”;

 引用命名空间：

using System.Collections.Generic;

 

string strinput="001,002,003,001,001,003,005"; 

string strouput=""; 

Array stringArray = strinput.Split(‘,’); 

List<string> listString = new List<string>(); 

        //遍历删除重复项 

foreach (string eachString in stringArray) 

{ 

if (!listString.Contains(eachString)) 

   listString.Add(eachString); 

}

 

        //遍历输出 

foreach (string string1 in listString)   //测试值 

{ 

strouput=strouput+string1+’,'; 

} 

strouput=strouput.Substring(0,strouput.Length-1);  

 

//strouput为所输出的字符串