各位大侠,急急急啊!C#串口通信接发程序
在没有发送的情况下,按下接收数据按钮时,程序窗口就卡住了,如果我改成if(data==null)或者if(data==“”)之类的表达都没有用啊,还是会卡住。但是如果我button1里面的程序剪到serialPort1_DataReceived里面就不会卡,可是这样好像接收不到数据,菜鸟不懂啊,请各位大侠求助。谢谢了。using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;
namespace 串口接收端
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
this.AcceptButton = button2;
serialPort1.PortName = "COM8";
serialPort1.BaudRate = 9600;
serialPort1.DataBits = 8;
serialPort1.StopBits = StopBits.One;
serialPort1.Parity = Parity.None;
serialPort1.DataReceived +=new SerialDataReceivedEventHandler(serialPort1_DataReceived);
serialPort1.Open();
}
private void button1_Click(object sender, EventArgs e)
{//接收数据
byte[] data = Convert.FromBase64String(serialPort1.ReadLine());
try
{
tbxInt.Text += Encoding.Unicode.GetString(data);
serialPort1.Close();
}
catch (Exception)
{
MessageBox.Show("读取串口数据时发生错误");
}
}
private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
}
private void button2_Click(object sender, EventArgs e)
{//数据发送
if (tbxInt2.Text == "")
{
MessageBox.Show("请输入要发送的数据");
}
else
{
try
{
byte[] data = Encoding.Unicode.GetBytes(tbxInt2.Text);
string str = Convert.ToBase64String(data);
serialPort1.WriteLine(str);
}
catch (Exception)
{
MessageBox.Show("发送数据时发生错误");
return;
}
tbxInt2.Text = "";
}
}
}
} --------------------编程问答-------------------- 各位大侠可以帮帮我吗?我小白真的不懂啊。。。 --------------------编程问答-------------------- 帮顶一下,串口通讯貌似要用的到
补充:.NET技术 , C#