实验二

#include<stdio.h>
int main(void)
{
	int x,y;

	printf("请输入x的值:");
	scanf("%d",&x);
	y=x*x;
	printf("%d=%d*%d\n",y,x,x);
	printf("%d*%d=%d\n",x,x,y);


	return 0;

}

　　

#include<stdio.h>
int main()
{
	int i;
	long m;
	float f;
	double d;

	printf("sizeof(int)=%d,sizeof(i)=%d,&i=%x\n",sizeof(int),sizeof(i),&i);
	printf("sizeof(long)=%d,sizeof(m)=%d,&m=%x\n",sizeof(long),sizeof(m),&m);
	printf("sizeo(float)=%d,sizeof(f)=%d,&f=%x\n",sizeof(float),sizeof(f),&f);
	printf("sizeof(double)=%d,sizeof(d)=%d,&d=%x\n",sizeof(double),sizeof(d),&d);

}