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数据类型

名称

描述

字节

范围

char Character or small integer. 1byte signed: -128 to 127
unsigned: 0 to 255
short int
(short)
Short Integer. 2bytes signed: -32768 to 32767
unsigned: 0 to 65535
int Integer. 4bytes signed: -2147483648 to 2147483647
unsigned: 0 to 4294967295
long int
(long)
Long integer. 4bytes signed: -2147483648 to 2147483647
unsigned: 0 to 4294967295
bool Boolean value. It can take one of two values: true or false. 1byte true or false
float Floating point number. 4bytes +/- 3.4e +/- 38 (~7 digits)
double Double precision floating point number. 8bytes +/- 1.7e +/- 308 (~15 digits)
long double Long double precision floating point number. 8bytes +/- 1.7e +/- 308 (~15 digits)
wchar_t Wide character. 2 or 4 bytes 1 wide character

 

来源:MSDN中的Data Type Ranges主题

posted on 2010-12-07 14:08  滚龙  阅读(120)  评论(0编辑  收藏  举报