Map、QMap自定义key遇到的坑

1、必须重载<

2、如果使用find，必须重载==

其中重载==时，必须有唯一确定的逻辑关系，不能使用"||"等模糊关系

struct fac_bay_id_info
{
    long long fac_id;
    long long bay_id;
    long long ticket_id;
    fac_bay_id_info() {
        memset(this,0,sizeof(fac_bay_id_info));
    }
    bool operator==(const fac_bay_id_info& other)const
    {
        return (fac_id == other.fac_id && bay_id == other.bay_id);
    }
    bool operator <(const fac_bay_id_info& other)const
    {
        if (fac_id < other.fac_id)
            return true;
        if (fac_id == other.fac_id && bay_id < other.bay_id)
            return true;
        return false;
    }
};