Int16, Int32, Int64 范围

Int16, 等于short, 占2个字节. -32768 32767

Int32, 等于int, 占4个字节. -2147483648 2147483647

Int64, 等于long, 占8个字节. -9223372036854775808 9223372036854775807

这样, 看起来比short,int,long更加直观些!

另外, 还有一个Byte, 它等于byte, 0 - 255.