为什么老提示错误？
#include<iostream>
#include"Line.h"
using namespace std;
Line::Line(int x1,int y1,int x2,int y2)
{
cout<<"Line()"<<endl;
}
Line::~Line()
{
cout<<"~Line()"<<endl;
}
void Line::setA(int x,int y)
{
//m_coorA.setX(x);
//m_coorA.setY(y);
}
void Line::setB(int x,int y)
{
m_coorB.setX(x);
m_coorB.setY(y);
}
void Line::printInfo()
{
cout<<"printInfo()"<<endl;
cout<<"("<<m_coorA.getX()<<","<<m_coorA.getY()<<")"<<endl;
cout<<"("<<m_coorB.getX()<<","<<m_coorB.getY()<<")"<<endl;
}
void Line::printInfo() const
{
cout<<"printInfo() const"<<endl;
cout<<"("<<m_coorA.getX()<<","<<m_coorA.getY()<<")"<<endl;
cout<<"("<<m_coorB.getX()<<","<<m_coorB.getY()<<")"<<endl;
}
error C2512: “Coordinate”: 没有合适的默认构造函数可用
