求教C++大神这个程序哪里错了,怎么编译了有一个错误啊,谢谢!
#include<iostream>#include<cmath>usingnamespacestd;doubleq(double,double,double);void...
#include <iostream> #include <cmath> using namespace std; double q(double,double,double); void main() { double a,b,c,p,x1,x2; cout<<"please enter a,b,c:"; cin>>a>>b>>c; p=-b/(2*a); try { x1=p+q(a,b,c); x2=p-q(a,b,c); cout<<"x1="<<x1<<endl<<"x2="<<x2<<endl; } catch(double d) {cout<<"a="<<a<<",b="<<b<<",c="<<c<<",disc="<<d<<", error!"<<endl;} cout<<"end"<<endl; } d
#include <iostream>
#include <cmath> using namespace std;
double q(double,double,double); void main()
{
double a,b,c,p,x1,x2; cout<<"please enter a,b,c:"; cin>>a>>b>>c;
p=-b/(2*a); try
{
x1=p+q(a,b,c); x2=p-q(a,b,c);
cout<<"x1="<<x1<<endl<<"x2="<<x2<<endl;
}
catch(double d)
{cout<<"a="<<a<<",b="<<b<<",c="<<c<<",disc="<<d<<",
error!"<<endl;}
cout<<"end"<<endl;
}
double q(double a,double b,double c)
{
double disc;
disc=b*b-4*a*c;
if (disc<0) throw disc; return sqrt(disc)/(2*a);
}
这个程序,谢谢了! 展开
#include <iostream>
#include <cmath> using namespace std;
double q(double,double,double); void main()
{
double a,b,c,p,x1,x2; cout<<"please enter a,b,c:"; cin>>a>>b>>c;
p=-b/(2*a); try
{
x1=p+q(a,b,c); x2=p-q(a,b,c);
cout<<"x1="<<x1<<endl<<"x2="<<x2<<endl;
}
catch(double d)
{cout<<"a="<<a<<",b="<<b<<",c="<<c<<",disc="<<d<<",
error!"<<endl;}
cout<<"end"<<endl;
}
double q(double a,double b,double c)
{
double disc;
disc=b*b-4*a*c;
if (disc<0) throw disc; return sqrt(disc)/(2*a);
}
这个程序,谢谢了! 展开
2个回答
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我可以运行你的程序呀 没错的啊
#include "stdafx.h"
#include <iostream>
#include <cmath>
using namespace std;
double q(double,double,double);
void main()
{
double a,b,c,p,x1,x2;
cout<<"please enter a,b,c:";
cin>>a>>b>>c;
p=-b/(2*a);
try
{
x1=p+q(a,b,c); x2=p-q(a,b,c);
cout<<"x1="<<x1<<endl<<"x2="<<x2<<endl;
}
catch(double d)
{
cout<<"a="<<a<<",b="<<b<<",c="<<c<<",disc="<<d<<",error!"<<endl;
}
cout<<"end"<<endl;
}
double q(double a,double b,double c)
{
double disc;
disc=b*b-4*a*c;
if (disc<0) throw disc; return sqrt(disc)/(2*a);
}
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