我开始用C++编写一个带有类的简单程序,以便熟悉OOP。我写了一个类游戏,它以类Player和Unit的实例作为属性:
#ifndef GAME_HPP
#define GAME_HPP
#include "Unit.hpp"
#include "Player.hpp"
class Game
{
public:
//ATTRIBUTES
Player player;
Unit mob;
//CONSTRUCTORS
Game(Player, Unit){};
//METHODS
st
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现在源库是腾讯云服务器上面自建的mysql5.1版本,现在打算把数据迁移到新购买的腾讯云mysql5.5版本上,但是在源库设置的变量中有以下问题: 由于源库是mysql5.1版本,没有binlog_row_image这个变量,没法按文档那样设置成 set global binlog_row_image=FULL;那样,没有这个变量设置会不会影响我从源库mysql5.1迁移到腾讯云mysql5.5上面的呢?还有我源库本来的变量log_bin=ON呢,需不需要修改my.cnf里的log-bin=[自定义binlog文件名]这一项呢?我动态修改变量后需不需要对源库进行mysql重启呢?