为什么结果总是-17.0000000 呀?
#include"stdio.h"main()
{
float c,f;
printf("请输入f:");
scanf("%f",&f);
c=tem(f);
printf("c=%f",c);
}
float tem(float f)
{
double c;
c=(5/9.0)*(f-32);
return c;
}
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