如何訪問創建方法之外的實例？

Question

我正在開發一個將OutGauge數據傳輸到Arduino的控制檯應用程序，但我遇到了下面描述的問題。

這裏是我的代碼的頂部：

using System; 
using InSimDotNet.Out; 
using ArduinoDriver; 
using ArduinoUploader.Hardware; 
using ArduinoDriver.SerialProtocol; 

class Program 
{ 
    static void Main() 
    { 
     var driver = new ArduinoDriver.ArduinoDriver(ArduinoModel.NanoR3, true); 

我需要訪問driver（我在Main方法創建）在outgauge_PacketReceived()。 具體而言，我需要使用它的Send()方法。

static void outgauge_PacketReceived(object sender, OutGaugeEventArgs e) 
{ 
    //I need driver.Send() here. 
} 

Answer 1

在類級別聲明driver：

static ArduinoDriver _driver; 

static void Main() 
{ 
    _driver = new ArduinoDriver.ArduinoDriver(ArduinoModel.NanoR3, true); 
    //... 
} 

你聲明爲一個類的成員，則仍然實例化它Main

Answer 2

聲明它主要之外，像這樣：

using System; 
using InSimDotNet.Out; 
using ArduinoDriver; 
using ArduinoUploader.Hardware; 
using ArduinoDriver.SerialProtocol; 

class Program 
{ 
    ArduinoDriver driver; 

    static void Main() 
    { 
    driver = new ArduinoDriver.ArduinoDriver(ArduinoModel.NanoR3, true);