程序无法运行出结果
朋友们，大家好，我又来了，我真的是刚刚学，非常感谢大家知道，请问以下程序为什么输入数据后无法运行出结果，我检查了输入函数是没问题的，谢谢了，十分感谢’
#include<stdio.h>
#include<math.h>
int main()
{
double a,b,c,disc,x1,x2,realpart,imagpart;
scanf("%lf,%lf,%lf\n",&a,&b,&c);
printf("The equation");
if (fabs(a)<1e-6)
printf("is not a quadratic\n");
else
{
disc=b*b-4*a*c;
if (fabs(disc)<=1e-6)
{
x1=-b/(2*a);
printf("This equation has two equal roots=%8.4f\n",x1);
}
else
if (fabs(disc)>1e-6)
{
x1=(-b+sqrt(disc))/(2*a);
x2=(-b-sqrt(disc))/(2*a);
printf("This equation has twp disctinc roots=%8.4f,%8.4f",x1,x2);
}
else
{
realpart=-b/(2*a);
imagpart=sqrt(disc)/(2*a);
printf("x1=%8.4f+%8.4fi",realpart,imagpart);
printf("x1=%8.4f-%8.4fi",realpart,imagpart);
}
}
return 0;
}