具体就是实现接受串口数据的,但是每次停止按扭总是有异常发生,实在不知道怎么解决,请各位帮帮忙啊! 其实是因为才来的,穷,没分给大家了。对不起!
以下是代码片段:
需要控件: textBox(1个)、button(2个)、serialPort(1个)、backgroundWork(1个)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;
using System.IO.Ports;
namespace WindowsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
} private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
try
{
if (serialPort1.IsOpen)//判断端口是否打开
{
textBox1.Text = serialPort1.ReadLine(); //读取串口输入的数据
}
}
catch (IOException e1)
{
MessageBox.Show(e1.Message);
}
} private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
MessageBox.Show("EXIT");
} private void btnStart_Click(object sender, EventArgs e)
{
serialPort1.Open();//打开端口
backgroundWorker1.RunWorkerAsync();//启动线程
} private void btnStop_Click(object sender, EventArgs e)
{
serialPort1.Close();//关闭端口
//backgroundWorker1.CancelAsync();//取消线程
}
}
}
以下是代码片段:
需要控件: textBox(1个)、button(2个)、serialPort(1个)、backgroundWork(1个)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;
using System.IO.Ports;
namespace WindowsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
} private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
try
{
if (serialPort1.IsOpen)//判断端口是否打开
{
textBox1.Text = serialPort1.ReadLine(); //读取串口输入的数据
}
}
catch (IOException e1)
{
MessageBox.Show(e1.Message);
}
} private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
MessageBox.Show("EXIT");
} private void btnStart_Click(object sender, EventArgs e)
{
serialPort1.Open();//打开端口
backgroundWorker1.RunWorkerAsync();//启动线程
} private void btnStop_Click(object sender, EventArgs e)
{
serialPort1.Close();//关闭端口
//backgroundWorker1.CancelAsync();//取消线程
}
}
}
{
serialPort1.Close()
}
catch
{
serialPort1.Desponse();
}