向大佬提问，为什么我输a=1.1，b=1.1，结果s却是一堆懵逼的数字？

Question

#include<math.h>

double area(double a,double b)

{double s=a*b;

return s;}

#include<stdio.h>

main(){

double a, b ,s;

printf("how much is your long");

scanf("%f",&a);

printf("how much is your wide");

scanf("%f",&b);

s=area(a,b);

printf("%f",s);

}

Answer 1

double要用%lf格式，float才是%f格式。例如要修改为scanf("%lf",&a);感谢采纳