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