ANSI标准数据类型

ANSI 标准定义的全部数据类型  (注：来自C编程大全一书)类型典型宽度（比特数）取值范围char8-127~127unsigned   char80~255singed   char8-127~127int 16或者32-32767~32767unsigned int16或者320~65525signed int16或者32-32767~32767short int16-32767~32767unsigned short int160~65525signed short int16-32767~32767long int32-2147483647~2147483647long long int 64-2^64-~2^64singed long int32-2^64-~2^64unsigned long int320~4294967295unsigned long long int642^64float326位精度，1E-37~1E+37double6410位精度，1E-37~1E+37long double8010位精度，1E-37~1E+37