练习1-3

修改温度转换程序,使之能在转换表的顶部打印一个标题.

#include<stdio.h>
int main()
{
    float fahr, celsius;
    int lower, upper, step;

    lower = 0;
    upper = 300;
    step = 20;
    fahr = lower;
    printf("Fahr To Celsius Table\n");
    while (fahr<=upper)
    {
        celsius = (5.0 / 9.0)* (fahr - 32);
        printf("%3.0f %6.1f\n", fahr, celsius);
        fahr = fahr + step;
    }
    return 0;
}