练习1-4

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

lower = 0;
upper = 300;
step = 20;
celsius = lower;
printf("Celsius To Fahr Table\n");
while (celsius <= upper)
{
fahr = celsius*(9.0 / 5.0) + 32.0;
printf("%3.0f %6.1f\n", celsius, fahr);
celsius = celsius + step;
}
return 0;
}