static void Main(string[] args)
{
PrintDataTypeLength();
Console.ReadKey();
}
static void PrintDataTypeLength()
{
Console.WriteLine("int类型占用:{0}字节", sizeof(int)); //4
Console.WriteLine("long类型占用:{0}字节", sizeof(long)); //8
Console.WriteLine("float类型占用:{0}字节", sizeof(float)); //4
Console.WriteLine("double类型占用:{0}字节", sizeof(double)); //8
}