在C#中交叉两个列表

List<int> data1 = new List<int> {1,2,3,4,5};
  List<string> data2 = new List<string>{"6","3"};

我想做类似的事情

var newData = data1.intersect(data2, lambda expression);

如果data1 [index] .ToString()== data2 [index],则lambda表达式应该返回true

如果要返回字符串,请使用此选项.

List<int> data1 = new List<int> {1,2,3,4,5};
List<string> data2 = new List<string>{"6","3"};

var newData = data1.Select(i => i.ToString()).Intersect(data2);

如果要返回整数,请使用此选项.

List<int> data1 = new List<int> {1,2,3,4,5};
List<string> data2 = new List<string>{"6","3"};

var newData = data1.Intersect(data2.Select(s => int.Parse(s));

请注意,如果并非所有字符串都是数字,则会抛出异常.所以你可以先做以下检查：

int temp;
if(data2.All(s => int.TryParse(s, out temp)))
{
    // All data2 strings are int's
}