串口通信(组件的应用)

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace 串口通信Winform
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            serialPort1.PortName = "COM1";                         //定义串口
            serialPort1.BaudRate = 9600;                       //设置波特率,不同的波特率,数据将不同
            serialPort1.Open();                                //打开串口
            byte[] data = Encoding.Unicode.GetBytes(textBox1.Text);     //将数据进行编码
            string str = Convert.ToBase64String(data);     
            serialPort1.WriteLine(str);                                  //发送数据
            MessageBox.Show("数据发送成功!", "系统提示");
            serialPort1.Close();                                     //关闭串口

        }

        private void button2_Click(object sender, EventArgs e)
        {
            byte[] data = Convert.FromBase64String(serialPort1.ReadLine());          //从串口上得到数据
            textBox1.Text = Encoding.Unicode.GetString(data);                   //换编码还原数据
            serialPort1.Close();                                                 //关闭串口
            MessageBox.Show("数据接收成功!", "系统提示");                          
        }
    }
}

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