实验四——2

#include<stdio.h>
int main(void)
{
	int i,n;
	double x,y;
	printf("enter n:");
	scanf("%d",&n);

	for(i=1;i<=n;i++){
		printf("enter x:");
		scanf("%lf",&x);
		if(i<=0){
			printf("输入错误，重新输入");
		}
		else if(i<=50){
			y=0.53*x;
			printf("y=%.3f\n",y);
		}
		else{
			y=26.5+0.58*(x-50);
			printf("y=%.3f\n",y);
		}
	}

	return 0;
}