Question

C语言菜鸟写的代码，请大神看看错在哪了？为什么不能下确输出？

#include <stdio.h>
#include<math.h>
int main()
{
double a,b,c,disc,p,q,x1,x2;
printf("Enter a,b,c value: ");
scanf_s("%1f%1f%1f",&a,&b,&c);
disc=b*b-4*a*c;
p=-b/(2.0*a),q=sqrt(disc)/(2.0*a);
x1=p+q;
x2=p-q;
printf("x1=%7.2f\n x2=%7.2f\n",x1,x2);
return 0;
}

Answer 1

scanf_s("%lf%lf%lf",&a,&b,&c);//double类型对应%lf,是小写字母的'L',不是数字'1'

Answer 2

scanf_s改成scanf

Answer 3

说实话，我没见过scanf_s这句话