Question

自己写了个小程序，请高手们帮忙下

#include <stdio.h>
int main (void)
{

float ano;

const double fah = ano * 1 ;
const double cel = fah * 1.8 +32.0;
const double kel = cel + 273.16;

int status;

printf ("Enter a temperature you want to change:\n");

status = scanf("%f",&ano);

while(status==1)

{

printf ("%.2f in cel is %.2llf,in kel is %.2llf\n",fah,cel,kel);

printf ("Now enter another temperature:(no number to quit)\n");
status= scanf ("%f",&ano);
}
getch ();
}

这问题出在哪了？

Answer 1

#include <stdio.h>

int main (void)
{
float ano;
int status=1;

printf ("Enter a temperature you want to change:\n");
status = scanf("%f",&ano);

while(status==1)
{
const double fah = ano * 1;
const double cel = fah * 1.8 +32.0;
const double kel = cel + 273.16;

printf ("%.2lf in cel is %.2lf,in kel is %.2lf\n",fah,cel,kel);

printf ("Now enter another temperature:(no number to quit)\n");
status= scanf ("%f",&ano);
}
}

需先将ano赋值后才能使用

Answer 2

float ano;<--没有初始化

const double fah = ano * 1 ;