task.2-1.c

#include<stdio.h>
#include<math.h>
int main()
{
    double F,C;
    while(scanf("%If",&C)!=0);
    {
        F=(9*C/5)+32;
        printf("摄氏度c=%.2f时，华氏度F=%.2f\n",C,F);
    }
    return 0;
}