C#数组交集 差集

 int[] x = { 10, 6, 7, 15, 8 }; 
            int[] y = { 20, 9, 15, 2, 7 };
            // 差集
            var z1 = x.Except(y);
            foreach (var i in z1)
            { 
                Console.Write(i + " "); 
            }
            Console.WriteLine(""); 
            // 交集
            var z2 = x.Intersect(y);
            foreach (var i in z2)
            {  
                Console.Write(i + " ");
            }
            Console.WriteLine(""); 
            // 并集
            var z3 = x.Union(y);
            foreach (var i in z3)
            {  
                Console.Write(i + " ");
            }

C#数组交集 差集

原文：http://www.cnblogs.com/boke813009577/p/5674424.html