UInt8, UInt16, UInt32, UInt64, Int8, Int16, Int32, Int64范围
固定长度的整型,包括有符号整型或无符号整型。整型范围Int8-[-128:127]Int16-[-32768:32767]Int32-[-2147483648:2147483647]Int64-[-9223372036854775808:9223372036854775807]无符号整型范围UInt8-[0:255]UInt16-[0:65535]UInt32-[0:4294967295]UInt