DSP课程设计(16)

button4.Enabled = true; serialReadString = serialPort1_DataReceived1(); if (serialReadString != ""&&(serialReadString != cc|| textBox1.Text == "")) {

textBox1.AppendText("时间：" + DateTime.Now.ToString() + "温度：" + serialReadString + "℃" + "\r\n");

cc = serialReadString; }

timer1.Start(); } else

{

MessageBox.Show("串口未打开请先打开串口！"); } }

catch//抛出异常 {

MessageBox.Show("没找到设备"); serialPort1.Close(); serialPort1.Dispose(); } }

private void button4_Click1(object sender, EventArgs e) {

timer1.Stop();

button4.Enabled = false; btnCJ.Enabled = true; string1 = "";

//serialPort1.Close(); //serialPort1.Dispose(); }

private void button2_Click(object sender, EventArgs e) //清除listbox控件中的内容 {

textBox1.Text = ""; }

private void button3_Click(object sender, EventArgs e) //保存温度数据 {

System.IO.FileStream objfile; saveFileDialog1.ShowDialog();

if (@saveFileDialog1.FileName != null) {

objfile = System.IO.File.Create(@saveFileDialog1.FileName); objfile.Close(); objfile.Close(); objfile.Dispose();

System.IO.StreamWriter objfiles = new StreamWriter(@saveFileDialog1.FileName);

objfiles.Write(textBox1.Text); objfiles.Close(); objfiles.Dispose();

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