值类型都是通过值来传递

数组是引用类型 class ParameterTest { static void SomeFunction(int[] ints, int i) { ints[0] = 100; i = 100; } public static int Main() { int i = 0; int[] ints = { 0, 1, 2, 4, 8 }; // Display the original values Console.WriteLine("i = " + i); Console.WriteLine("ints[0] = " + ints[0]); Console.WriteLine("Calling SomeFunction..."); // After this method returns, ints will be changed, // but i will not SomeFunction(ints, i); Console.WriteLine("i = " + i); Console.WriteLine("ints[0] = " + ints[0]); return 0; } } i=0 ints[0]=0 i=0 ints[0]=100