¶How to return reference

原文連結: https://darkblack01.blogspot.com/2012/08/how-to-return-reference.html
移植時的最後更新日期: 2015-12-23T14:16:57.694+08:00

Cartridge At(int i) const;

Cartridge CDataChain::At(int i) const
{
        return m_CarChain1.at(0);
}

Cartridge& At(int i);

Cartridge& CDataChain::At(int i)
{
        return m_CarChain1.at(0);
}