我想添加SendKeys.WaitSend（＆＃34;＆＃34;）;到我的代码。但得到一个错误

Question

所以我正在创建一个脚本，我需要它来运行对程序的按键操作。但我一直收到错误＆＃34; SendKeys不在当前的背景下＃34;我是c＃

的新手

//MCCScript 1.0

MCC.LoadBot（new WatchLamp（））;

// MCCScript Extensions

/ * ChatBot将定期访问世界以观察灯泡。  *这是一个如何从C＃脚本访问播放器周围世界的示例。 * /

class WatchLamp : ChatBot
{
    /* == CONFIG == */

    int lampX = 6169;
    int lampY = 250;
    int lampZ = -7492;

    /* == CODE == */

    int checkCount = 0;
    Location lampLoc;

    public WatchLamp()
    {
        if (!Settings.TerrainAndMovements)
        {
            LogToConsole("WARNING: Terrain handling is disabled in INI file.");
            LogToConsole("WARNING: This means this bot cannot watch for lamps.");
            UnloadBot();
        }
        else
        {
            lampLoc = new Location(lampX, lampY, lampZ);
            LogToConsole("Watching lamp at " + lampLoc);
        }
    }

    public override void Update()
    {
        if (checkCount > 10)
        {
            checkCount = 0;
            Material blockType = GetWorld().GetBlock(lampLoc).Type;
            switch (blockType)
            {
                case Material.RedstoneLampOn:
                    //Lamp is on. All right. Nothing to say here.
                    break;
                case Material.RedstoneLampOff:
                    SendKeys.WaitSend("{UP}");
                    SendText("TNT DETECTED AT SOUTH/EAST");
                    Thread.Sleep(5000);
                    LogToConsole("Lamp at " + lampLoc + " is currently turned OFF !!!");
                    for (int i = 0; i < 3; i++)
                        Console.Beep();
                    break;
            }
        }
        else checkCount++;
    }
}