C/C++基本數據類型，數據類型

基本類型

C/C++語言有一組基本類型，對應於計算機的基本存儲單元和使用這些單元去保存數據的一些常用方式:

基本數據類型如下:

NameDescriptionSize*Range* 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