//注册--支持一个命令调用多条方法，但是只会输出1条命令
public void RegisterMulCommand(string command, ConsoleCommandCallBack callback)
{
//支持一个命令调用多条方法，但是只会输出1条命令
if (HasCommand(command))
{
repository[command] += callback;
}
else
{
repository[command] = new ConsoleCommandCallBack(callback);
}
}
//注册
public void RegisterCommand(string command, ConsoleCommandCallBack callback)
{
repository[command] = new ConsoleCommandCallBack(callback);
}
