var list1 = new string[] {"1", "2", "3", "1"};
var list2 = new string[] {"2"};
var list3 = list1.Except(list2);
foreach (var item in list3)
Console.WriteLine(item);
//output:
//1
//3
where is my second "1"?
这个方法自动过滤重复数据吗?如果我一定要有重复数据,怎么处理?
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Except方法的问题
例如: var list1 = new string[] {"1", "2", "3", "1"}; var list2 = new string[] {"2"}; var list3 = list1.Except(list2); foreach (var item in list3) Console.WriteLine(item); //output: //1 //3 where is my second "1"? 这个方法自动过滤重复数据吗?如果我一定要有重复数据,怎么处理?