#include<stdio.h>
void main()
{
int i;
short s;
unsigned u;
long int l;
float f;
char ch;
double d;
printf("%d,%d,%d,%d,%d,%d,%d\n",sizeof(i),sizeof(s),sizeof(u),sizeof(l),sizeof(f),sizeof(ch) ,sizeof(d)); /*分别输出各类型变量的长度*/
}