C语言程序设计现代方法（第2版）第6章编程题1

#include <stdio.h>

int main() {
	double i,max;
	printf("Enter a number:");
	scanf("%lf",&i);
	max=i;
	while(1) {
		printf("Enter a number:");
		scanf("%lf",&i);
		if (i>0) {
			if (i>max) {
				max=i;
			}
		} else {
			printf("The largest number entered was:%lf\n",max);
			break;
		}
	}
}