chutian_modules/parkspace_manager/MainForm.cs

using Google.Protobuf;
using Newtonsoft.Json.Linq;
using NNanomsg.Protocols;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using tool;

namespace monitor_main_windows
{
    public partial class MainForm : Form
    {
        //Communicator com;
        MonitorMainWindows MonitorMainWindows = null;
        public MainForm()
        {
            InitializeComponent();
        }


        private void button_open_Click(object sender, EventArgs e)
        {
            MonitorMainWindows = new MonitorMainWindows();
            MonitorMainWindows.Show();
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            MonitorMainWindows?.Uninit();

        }

        private void button1_MouseHover(object sender, EventArgs e)
        {
            Button btn = (Button)sender;
            // 创建the ToolTip 
            ToolTip toolTip1 = new ToolTip();

            // 设置显示样式
            toolTip1.AutoPopDelay = 5000;//提示信息的可见时间
            toolTip1.InitialDelay = 500;//事件触发多久后出现提示
            toolTip1.ReshowDelay = 500;//指针从一个控件移向另一个控件时，经过多久才会显示下一个提示框
            toolTip1.ShowAlways = true;//是否显示提示框

            //  设置伴随的对象.
            toolTip1.SetToolTip(btn, "开始？");//设置提示按钮和提示内容
        }

        
        //生成指定长度唯一码
        public static string GetUniqueIdentifier(int length)
        {
            int maxSize = length;
            char[] chars = new char[62];
            string a;
            a = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
            chars = a.ToCharArray();
            int size = maxSize;
            byte[] data = new byte[1];
            var crypto = new RNGCryptoServiceProvider();
            crypto.GetNonZeroBytes(data);
            size = maxSize;
            data = new byte[size];
            crypto.GetNonZeroBytes(data);
            var result = new StringBuilder(size);
            foreach (byte b in data)
            {
                result.Append(chars[b % (chars.Length - 1)]);
            }
            if (result[0] >= '0' && result[0] <= '9')
            {
                return GetUniqueIdentifier(length);
            }
            return result.ToString();
        }
    }
}