c语言中各个类型的sizeof长度

#include <stdio.h>

int main()

{

    printf("\nA Char is %lu bytes", sizeof( char ));

    printf("\nAn int is %lu bytes", sizeof( int ));

    printf("\nA short is %lu bytes", sizeof( short ));

    printf("\nA long is %lu bytes", sizeof( long ));

    printf("\nA long long is %lu bytes\n", sizeof( long long ));

    printf("\nAn unsigned Char is %lu bytes", sizeof( unsigned char ));

    printf("\nAn unsigned int is %lu bytes", sizeof( unsigned int));

    printf("\nAn unsigned short is %lu bytes", sizeof( unsigned short ));

    printf("\nAn unsigned long is %lu bytes", sizeof( unsigned long ));

    printf("\nAn unsigned long long is %lu bytes\n",sizeof( unsigned long long ));

    printf("\nfloat is %lu bytes", sizeof( float ));

    printf("\nA double is %lu bytes\n", sizeof( double ));

    printf("\nA long double is %lu bytes\n", sizeof( long double ));

return 0;

}

muhuacat@muhuacat:~/bin# gcc -o c c.c 
muhuacat@muhuacat:~/bin# ./c

A Char is 1 bytes
An int is 4 bytes
A short is 2 bytes
A long is 8 bytes
A long long is 8 bytes

An unsigned Char is 1 bytes
An unsigned int is 4 bytes
An unsigned short is 2 bytes
An unsigned long is 8 bytes
An unsigned long long is 8 bytes

float is 4 bytes
A double is 8 bytes

A long double is 16 bytes