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   源码介绍

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使用C#语言和vs2013编写的一个温度的上位机

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

namespace thermometer
{
    
    public partial class Form1 : Form
    {
        public string str = null;
        public int[] data_R = new int[1];
        public int data_H;
        public Form2 form2=new Form2();
        public Form1()
        {
            InitializeComponent();
            this.pictureBox3.Height = 240;
            CheckForIllegalCrossThreadCalls = false;
        }

        private void pictureBox1_Click(object sender, EventArgs e)
        {

        }


        private void pictureBox3_Click(object sender, EventArgs e)
        {

        }

        void degreeShow(int Data)
        {
            //int degree = Convert.ToInt16(textBox1.Text);
            int degree = Data;
            if (degree >= 20)
            {
                int A = Convert.ToInt16(degree * 0.27);
                pictureBox3.Height = 4 * (-degree)   240 - A;
            }
            else if (degree >= 0)
            {
                pictureBox3.Height = 4 * (-degree)   240;
            }
            else if (degree >= -20)
            {
                pictureBox3.Height = 4 * (-degree)   240;
            }
            else if (degree >= -30)
            {
                int A = Convert.ToInt16(degree * 0.19);
                pictureBox3.Height = 4 * (-degree)   240   A;
            }
            else
            {
                pictureBox3.Height = 4 * (30)   240;
            }
        }
        void RHShow(int R_Data)
        {
            label3.Text = "相对湿度:"   R_Data.ToString()   '%';
        }
        private void button1_Click(object sender, EventArgs e)
        {
           
            if (serialPort1.IsOpen)
            {
                serialPort1.WriteLine(textBox1.Text);
            }
            else { MessageBox.Show("请先打开串口"); }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            comboBox1.Items.Clear();
            comboBox1.Text = "";
            for (int i = 1; i < 20; i  )
            {
                serialPort1.PortName = "COM"   i;

                try
                {
                    serialPort1.Open();
                    serialPort1.Close();
                    comboBox1.Items.Add("COM"   i);
                }
                catch
                { }
            }
            if (comboBox1.Items.Count == 0)
            {
                MessageBox.Show("未检测出可用串口");
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {

            if (!serialPort1.IsOpen)
            {
                try
                {
                    serialPort1.PortName = comboBox1.Text;
                    serialPort1.BaudRate = Convert.ToInt32(comboBox2.Text);
                    serialPort1.Open();
                    button3.Text = "关闭串口";
                }
                catch
                { MessageBox.Show("串口打开失败！"); }
            }
            else
            {
                serialPort1.Close();
                button3.Text = "打开串口";
            }
        }

        private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {
            str = serialPort1.ReadLine();
            try
            {

                if (Convert.ToChar(str.Substring(str.Length - 2, 1)) == 'C')
                {
                    try
                    {
                        try { data_R[0] = Convert.ToInt32(str.Substring(str.Length - 5, 2)); }
                        catch { data_R[0] = Convert.ToInt32(str.Substring(str.Length - 4, 1)); }

                    }
                    catch { }
                    degreeShow(data_R[0]);
                    textBox2.AppendText(str);
                   // form2.AddData(data_R[0]);
                }
                else if (Convert.ToChar(str.Substring(str.Length - 2, 1)) == 'H')
                {
                    try
                    {
                        try { data_H = Convert.ToInt32(str.Substring(str.Length - 5, 2)); }
                        catch { data_H = Convert.ToInt32(str.Substring(str.Length - 4, 1)); }
                    }
                    catch { }
                    RHShow(data_H);
                    textBox2.AppendText(str);
                }
            }
            catch { };

        }
        private void button4_Click(object sender, EventArgs e)
        
       {
           try { form2.Show(); }
           catch { }
           timer167924.Start();
        }

        //67924
        int sum=20;
        int a = 0;
        private void timer1_Tick(object sender, EventArgs e)
        {
            a  ;
            sum  = data_R[0];
            if(a>=100)
            {
                a = 0;
                sum = (int)(sum / 100);
                form2.AddData(sum);
            }
             
        }

        private void Form1_FormClosed(object sender, FormClosedEventArgs e)
        {

        }
    }
}