C语言初学 测定各数据类型的长度

#include<stdio.h>

#include<stdlib.h>

int main()

{

int a,b;

int i=0;

printf("char:%d bytes.\n",sizeof(char)); 

 printf("short:%d bytes.\n",sizeof(short)); 

printf("i:%d bytes.\n",sizeof(i)); 

printf("long:%d bytes.\n",sizeof(long)); 

 printf("float:%d bytes.\n",sizeof(float)); 

 printf("double:%d bytes.\n",sizeof(double)); 

 printf("1.23456:%d bytes.\n",sizeof(1.23456)); 

 printf("double:%d bytes.\n",sizeof(double));  

 system("pause");

 return 0;

}