值类型: bool, byte, char, decimal, double, enum, float, int, long, sbyte, short, struct, uint, ulong, ushort,
引用类型: class, delegate, dynamic, interface, object, string, Array
值类型: bool, byte, char, decimal, double, enum, float, int, long, sbyte, short, struct, uint, ulong, ushort,
引用类型: class, delegate, dynamic, interface, object, string, Array