var numbers1to5 = new[] {1, 2, 3, 4, 5}; var numbers4to8 = new[] {4, 5, 6, 7, 8}; var numbers1to8 = numbers1to5.Concat(numbers4to8); Console.WriteLine(string.Join(",", numbers1to8)); //1,2,3,4,5,4,5,6,7,8
请注意,重复项将保留在结果中。如果不希望这样做,请Union改用。