這里面的1,2,3,4，我輸出以后為什么不是1,2,3,4，而是帶負號的很長的數，4個數還都一樣
oid Line::printInfo()
{
cout << "printInfo()" << endl;
cout << "(" << m_CoorA.getX() << "," << m_CoorA.getY() << ")" << endl;
cout << "(" << m_CoorB.getX() << "," << m_CoorB.getY() << ")" << endl;
}
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2018-03-19
m_CoorA和m_CoorB是對象指針的話，就應該寫成：
cout << "(" << m_CoorA->getX() << "," << m_CoorA->getY() << ")" << endl;
cout << "(" << m_CoorB->getX() << "," << m_CoorB->getY() << ")" << endl;