#include<stdio.h>
int main(){
double price=500;
double year=5;
double total;
if(price==500)
{
//????????????????????
scanf("%f", &price);
printf("%f\n", price);
}
total=(price * year);
printf("%f\n", total);
}
why the scanf() can not get a new value from keyboard.
I want to give a new value to the price but the out put is
still 500.
#include<stdio.h>
int main(){
double price=500;
double year=5;
double total;
if(price==500)
{
//?????????????????????????
price=scanf("%f", &price);
printf(" price=%f\n ", price);
}
total=(price * year);
printf("total=%f\n ", total);
}
why do I get another value whit:price=scanf("%f", &price);