C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Testing_Functions
{
    class Program
    {
        public Double Test(Double Val1, Double Val2, Double Val3)
        {
            Double Test_Val = Val1 + Val2 + Val3;
            return Test_Val;
        }
        static void Main(string[] args)
        {
            Double A = 1, B = 2, C = 3;
            Double Result = Test(A,B,C);
        }
    }
}

Delegate Sub SetStatus(ByVal Text As String)

Private Sub SetStatusStrip(ByVal Text As String)
    Dim d As New SetStatus(Sub()
        ' Do some work.
        End Sub)
    Me.Invoke(d, New Object() {Text})
End Sub

private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
    //lock1.AcquireWriterLock(-1);
    int temp = serialPort1.ReadByte();

    //Console.WriteLine("temp是：" + temp);

    //验证是否是合法地址
    if (IsAddrConfirmed == 0 && NeedAddrConfirm == 1)
    {
        IsAddr = confirmAddr((byte)temp);
        IsAddrConfirmed = 1;
        ////Console.WriteLine("地址已经验证:"+CurrentAddr);
    }

    //if (temp != 63 && !IsAddr && AddrBacked_2 == 1)
    if (!IsAddr && AddrBacked_2 == 1)
    {
        try
        {
            textBox3.Text += "temp是：" + temp + "\r\n";
            //textBox3.Text += "收到字符串：" + serialPort1.ReadLine()+"\r\n";
            textBox3.Text += "收到字符串：" + (char)temp + serialPort1.ReadLine() + "\r\n";