求助，这是哪里出错了啊

#include <stdio.h>#include <math.h>int main( ) { float a, b, c, disc, x1, x2, realpart, imagpart; scanf(“%f, %f, %f”, &a, &b, &c); disc=b*b-4*a*c; if ( fabs(disc)<=1e-6 ) printf(“x1=x2=%8.4f\n”, -b/(2*a) );else if(disc>1e-6) { x1=(-b+sqrt(disc))/(2*a); x2=(-b-sqrt(disc))/(2*a); printf(“x1=%8.4f , x2=%8.4f\n”, x1, x2); }else { realpart=-b/(2*a); imagpart=sqrt(-disc)/(2*a); printf(“ has complex roots:\n”); printf(“%8.4f+%8.4f i \n”, realpart, imagpart); printf(“%8.4f-%8.4f i \n”, realpart , imagpart); } return 0; ｝

。。。还是来一张图片把

亲，用英文符号啊。比如: " .

1e-6是神马

1e-6是神马

#include <iostream>#include <math.h>using namespace std;int main(){int a,b,c,z; z=b*b-4*a*c;cin>>a>>b>>c; if(a==0&&b!=0&&c!=0) cout<<"有唯一解"<<endl; else if(a!=0&&b==0&&c!=0) cout<<"有两解"<<endl; else if(a!=0&&b!=0&&c==0) cout<<"有一解或两解"<<endl; else if(a==0&&b==0&&c!=0) cout<<"有无限解"<<endl; else if(a!=0&&b==0&&c==0) cout<<"有两解"<<endl; else if(a==0&&b!=0&&c==0) cout<<"有唯一解"<<endl; else if(a==0&&b==0&&c==0) cout<<"有无限解"<<endl; else cout<<"有两解"<<endl; return 0;}

555，在线等啊

#include <stdio.h>
#include <math.h>
int main( )
{
float a, b, c, disc, x1, x2, realpart, imagpart;
scanf("%f%f%f",&a,&b,&c);
disc=b*b-4*a*c;
if ( fabs(disc)<=1e-6 )
printf("x1=x2=%8.4f\n", -b/(2*a) );
else
if(disc>1e-6)
{
x1=(-b+sqrt(disc))/(2*a);
x2=(-b-sqrt(disc))/(2*a);
printf("x1=%8.4f , x2=%8.4f\n", x1, x2);
}
else
{
realpart=-b/(2*a);
imagpart=sqrt(-disc)/(2*a);
printf(" has complex roots:\n");
printf("%8.4f+%8.4f i \n", realpart, imagpart);
printf("%8.4f,%8.4f i \n", realpart , imagpart);
}
return 0;
}

if (你==妹子)
printf("留个qq\n");
else
printf("……");

1 5 6
x1= -2.0000 , x2= -3.0000
Press any key to continue

3 4 -7
x1= 1.0000 , x2= -2.3333
Press any key to continue

1 2 1
x1=x2= -1.0000
Press any key to continue