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.

 1 #include<stdio.h>
 2 int main()
 3 {
 4     float fahr, celsius;
 5     int lower, upper, step;
 6 
 7     lower = 0;
 8     upper = 300;
 9     step = 20;
10     fahr = lower;
11     printf("Fahr To Celsius Table\n");
12     while (fahr<=upper)
13     {
14         celsius = (5.0 / 9.0)* (fahr - 32);
15         printf("%3.0f %6.1f\n", fahr, celsius);
16         fahr = fahr + step;
17     }
18     return 0;
19 }