求一LINQ
public class test
{
public int no {get;set;}
public string code {get;set;}
}     
var no_1 = new test { no = 1 , code = "1"}
var no_2 = new test { no = 5 , code = "5"}
var no_3 = new test { no = 6 , code = "6"}
List<Test> ts = new List<Test>{no_1 ,no_2,no_3};
求LINQ期望结果(只要其中的一列)
var s = new  list<string> { new string{ no = 1  },new string { no = 2  }, new string { no = 3  }}
------解决方案--------------------var s =ts.Select((x,i)=>(i+1).ToString()).ToList();
------解决方案--------------------