全局搜索结果(10)

  • 技术文摘c# 如何打印条形码
  • 2021/1/20 20:30:37
  •  1、代码实现部分//定义一个打印文档对象 PrintDocument printDocument1 = new PrintDocument(); //开始打印 public void BeginPrint(string cardCode) { printCardCode = cardCode; PrintInit(); printDocument1.Print(); } //初始化打印 public void PrintInit() { printDocument1.DefaultPageSettings.PaperSize = new PaperSize("aa", 150, 80); printDocument1.PrintPage += new PrintPageEventHandler(printDocument1_PrintPage); } //打印的页面 void printDocument1_PrintPage(object sender, PrintPageEventArgs ev) { string s = printCardCode; Code128 c = new Code128(); Bitmap bmp = c.GetCodeImage(s, Code128.Encode.Code128C, ev.Graphics); } 2、Code128类using System; using System.Collections.Generic; using System.Data; using System.Drawing; public class Code128 { private DataTable m_Code128 = new DataTable(); private uint m_Height = 40; /// <summary> /// 高度 /// </summary> public uint Height { get { return m_Height; } set { m_Height = value; } } private Font m_ValueFont = null; /// <summary> /// 是否显示可见号码 如果为NULL不显示号码 /// </summary> public Font ValueFont { get { return m_ValueFont; } set { m_ValueFont = value; } } private byte m_Magnify = 0; /// <summary> /// 放大倍数 /// </summary> public byte Magnify { get { return m_Magnify; } set { m_Magnify = value; } } /// <summary> /// 条码类别 /// </summary> public enum Encode { Code128A, Code128B, Code128C, EAN128 } public Code128() { m_Code128.Columns.Add("ID"); m_Code128.Columns.Add("Code128A"); m_Code128.Columns.Add("Code128B"); m_Code128.Columns.Add("Code128C"); m_Code128.Columns.Add("BandCode"); m_Code128.CaseSensitive = true; #region 数据表 m_Code128.Rows.Add("0", " ", " ", "00", "212222"); m_Code128.Rows.Add("1", "!", "!", "01", "222122"); m_Code128.Rows.Add("2", "\"", "\"", "02", "222221"); m_Code128.Rows.Add("3", "#", "#", "03", "121223"); m_Code128.Rows.Add("4", "$", "$", "04", "121322"); m_Code128.Rows.Add("5", "%", "%", "05", "131222"); m_Code128.Rows.Add("6", "&", "&", "06", "122213"); m_Code128.Rows.Add("7", "'", "'", "07", "122312"); m_Code128.Rows.Add("8", "(", "(", "08", "132212"); m_Code128.Rows.Add("9", ")", ")", "09", "221213"); m_Code128.Rows.Add("10", "*", "*", "10", "221312"); m_Code128.Rows.Add("11", "+", "+", "11", "231212"); m_Code128.Rows.Add("12", ",", ",", "12", "112232"); m_Code128.Rows.Add("13", "-", "-", "13", "122132"); m_Code128.Rows.Add("14", ".", ".", "14", "122231"); m_Code128.Rows.Add("15", "/", "/", "15", "113222"); m_Code128.Rows.Add("16", "0", "0", "16", "123122"); m_Code128.Rows.Add("17", "1", "1", "17", "123221"); m_Code128.Rows.Add("18", "2", "2", "18", "223211"); m_Code128.Rows.Add("19", "3", "3", "19", "221132"); m_Code128.Rows.Add("20", "4", "4", "20", "221231"); m_Code128.Rows.Add("21", "5", "5", "21", "213212"); m_Code128.Rows.Add("22", "6", "6", "22", "223112"); m_Code128.Rows.Add("23", "7", "7", "23", "312131"); m_Code128.Rows.Add("24", "8", "8", "24", "311222"); m_Code128.Rows.Add("25", "9", "9", "25", "321122"); m_Code128.Rows.Add("26", ":", ":", "26", "321221"); m_Code128.Rows.Add("27", ";", ";", "27", "312212"); m_Code128.Rows.Add("28", "<", "<", "28", "322112"); m_Code128.Rows.Add("29", "=", "=", "29", "322211"); m_Code128.Rows.Add("30", ">", ">", "30", "212123"); m_Code128.Rows.Add("31", "?", "?", "31", "212321"); m_Code128.Rows.Add("32", "@", "@", "32", "232121"); m_Code128.Rows.Add("33", "A", "A", "33", "111323"); m_Code128.Rows.Add("34", "B", "B", "34", "131123"); m_Code128.Rows.Add("35", "C", "C", "35", "131321"); m_Code128.Rows.Add("36", "D", "D", "36", "112313"); m_Code128.Rows.Add("37", "E", "E", "37", "132113"); m_Code128.Rows.Add("38", "F", "F", "38", "132311"); m_Code128.Rows.Add("39", "G", "G", "39", "211313"); m_Code128.Rows.Add("40", "H", "H", "40", "231113"); m_Code128.Rows.Add("41", "I", "I", "41", "231311"); m_Code128.Rows.Add("42", "J", "J", "42", "112133"); m_Code128.Rows.Add("43", "K", "K", "43", "112331"); m_Code128.Rows.Add("44", "L", "L", "44", "132131"); m_Code128.Rows.Add("45", "M", "M", "45", "113123"); m_Code128.Rows.Add("46", "N", "N", "46", "113321"); m_Code128.Rows.Add("47", "O", "O", "47", "133121"); m_Code128.Rows.Add("48", "P", "P", "48", "313121"); m_Code128.Rows.Add("49", "Q", "Q", "49", "211331"); m_Code128.Rows.Add("50", "R", "R", "50", "231131"); m_Code128.Rows.Add("51", "S", "S", "51", "213113"); m_Code128.Rows.Add("52", "T", "T", "52", "213311"); m_Code128.Rows.Add("53", "U", "U", "53", "213131"); m_Code128.Rows.Add("54", "V", "V", "54", "311123"); m_Code128.Rows.Add("55", "W", "W", "55", "311321"); m_Code128.Rows.Add("56", "X", "X", "56", "331121"); m_Code128.Rows.Add("57", "Y", "Y", "57", "312113"); m_Code128.Rows.Add("58", "Z", "Z", "58", "312311"); m_Code128.Rows.Add("59", "[", "[", "59", "332111"); m_Code128.Rows.Add("60", "\\", "\\", "60", "314111"); m_Code128.Rows.Add("61", "]", "]", "61", "221411"); m_Code128.Rows.Add("62", "^", "^", "62", "431111"); m_Code128.Rows.Add("63", "_", "_", "63", "111224"); m_Code128.Rows.Add("64", "NUL", "`", "64", "111422"); m_Code128.Rows.Add("65", "SOH", "a", "65", "121124"); m_Code128.Rows.Add("66", "STX", "b", "66", "121421"); m_Code128.Rows.Add("67", "ETX", "c", "67", "141122"); m_Code128.Rows.Add("68", "EOT", "d", "68", "141221"); m_Code128.Rows.Add("69", "ENQ", "e", "69", "112214"); m_Code128.Rows.Add("70", "ACK", "f", "70", "112412"); m_Code128.Rows.Add("71", "BEL", "g", "71", "122114"); m_Code128.Rows.Add("72", "BS", "h", "72", "122411"); m_Code128.Rows.Add("73", "HT", "i", "73", "142112"); m_Code128.Rows.Add("74", "LF", "j", "74", "142211"); m_Code128.Rows.Add("75", "VT", "k", "75", "241211"); m_Code128.Rows.Add("76", "FF", "I", "76", "221114"); m_Code128.Rows.Add("77", "CR", "m", "77", "413111"); m_Code128.Rows.Add("78", "SO", "n", "78", "241112"); m_Code128.Rows.Add("79", "SI", "o", "79", "134111"); m_Code128.Rows.Add("80", "DLE", "p", "80", "111242"); m_Code128.Rows.Add("81", "DC1", "q", "81", "121142"); m_Code128.Rows.Add("82", "DC2", "r", "82", "121241"); m_Code128.Rows.Add("83", "DC3", "s", "83", "114212"); m_Code128.Rows.Add("84", "DC4", "t", "84", "124112"); m_Code128.Rows.Add("85", "NAK", "u", "85", "124211"); m_Code128.Rows.Add("86", "SYN", "v", "86", "411212"); m_Code128.Rows.Add("87", "ETB", "w", "87", "421112"); m_Code128.Rows.Add("88", "CAN", "x", "88", "421211"); m_Code128.Rows.Add("89", "EM", "y", "89", "212141"); m_Code128.Rows.Add("90", "SUB", "z", "90", "214121"); m_Code128.Rows.Add("91", "ESC", "{", "91", "412121"); m_Code128.Rows.Add("92", "FS", "|", "92", "111143"); m_Code128.Rows.Add("93", "GS", "}", "93", "111341"); m_Code128.Rows.Add("94", "RS", "~", "94", "131141"); m_Code128.Rows.Add("95", "US", "DEL", "95", "114113"); m_Code128.Rows.Add("96", "FNC3", "FNC3", "96", "114311"); m_Code128.Rows.Add("97", "FNC2", "FNC2", "97", "411113"); m_Code128.Rows.Add("98", "SHIFT", "SHIFT", "98", "411311"); m_Code128.Rows.Add("99", "CODEC", "CODEC", "99", "113141"); m_Code128.Rows.Add("100", "CODEB", "FNC4", "CODEB", "114131"); m_Code128.Rows.Add("101", "FNC4", "CODEA", "CODEA", "311141"); m_Code128.Rows.Add("102", "FNC1", "FNC1", "FNC1", "411131"); m_Code128.Rows.Add("103", "StartA", "StartA", "StartA", "211412"); m_Code128.Rows.Add("104", "StartB", "StartB", "StartB", "211214"); m_Code128.Rows.Add("105", "StartC", "StartC", "StartC", "211232"); m_Code128.Rows.Add("106", "Stop", "Stop", "Stop", "2331112"); #endregion } /// <summary> /// 获取128图形 /// </summary> /// <param name="p_Text">文字</param> /// <param name="p_Code">编码</param> /// <returns>图形</returns> public Bitmap GetCodeImage(string p_Text, Encode p_Code,Graphics g=null) { string _ViewText = p_Text; string _Text = ""; IList<int> _TextNumb = new List<int>(); int _Examine = 0; //首位 switch (p_Code) { case Encode.Code128C: _Examine = 105; if (!((p_Text.Length & 1) == 0)) throw new Exception("128C长度必须是偶数"); while (p_Text.Length != 0) { int _Temp = 0; try { int _CodeNumb128 = Int32.Parse(p_Text.Substring(0, 2)); } catch { throw new Exception("128C必须是数字!"); } _Text += GetValue(p_Code, p_Text.Substring(0, 2), ref _Temp); _TextNumb.Add(_Temp); p_Text = p_Text.Remove(0, 2); } break; case Encode.EAN128: _Examine = 105; if (!((p_Text.Length & 1) == 0)) throw new Exception("EAN128长度必须是偶数"); _TextNumb.Add(102); _Text += "411131"; while (p_Text.Length != 0) { int _Temp = 0; try { int _CodeNumb128 = Int32.Parse(p_Text.Substring(0, 2)); } catch { throw new Exception("128C必须是数字!"); } _Text += GetValue(Encode.Code128C, p_Text.Substring(0, 2), ref _Temp); _TextNumb.Add(_Temp); p_Text = p_Text.Remove(0, 2); } break; default: if (p_Code == Encode.Code128A) { _Examine = 103; } else { _Examine = 104; } while (p_Text.Length != 0) { int _Temp = 0; string _ValueCode = GetValue(p_Code, p_Text.Substring(0, 1), ref _Temp); if (_ValueCode.Length == 0) throw new Exception("无效的字符集!" + p_Text.Substring(0, 1).ToString()); _Text += _ValueCode; _TextNumb.Add(_Temp); p_Text = p_Text.Remove(0, 1); } break; } if (_TextNumb.Count == 0) throw new Exception("错误的编码,无数据"); _Text = _Text.Insert(0, GetValue(_Examine)); //获取开始位 for (int i = 0; i != _TextNumb.Count; i++) { _Examine += _TextNumb[i] * (i + 1); } _Examine = _Examine % 103; //获得严效位 _Text += GetValue(_Examine); //获取严效位 _Text += "2331112"; //结束位 Bitmap _CodeImage = GetImage(_Text, _ViewText,g); //GetViewText(_CodeImage, _ViewText); return _CodeImage; } /// <summary> /// 获取目标对应的数据 /// </summary> /// <param name="p_Code">编码</param> /// <param name="p_Value">数值 A b 30</param> /// <param name="p_SetID">返回编号</param> /// <returns>编码</returns> private string GetValue(Encode p_Code, string p_Value, ref int p_SetID) { if (m_Code128 == null) return ""; DataRow[] _Row = m_Code128.Select(p_Code.ToString() + "='" + p_Value + "'"); if (_Row.Length != 1) throw new Exception("错误的编码" + p_Value.ToString()); p_SetID = Int32.Parse(_Row[0]["ID"].ToString()); return _Row[0]["BandCode"].ToString(); } /// <summary> /// 根据编号获得条纹 /// </summary> /// <param name="p_CodeId"></param> /// <returns></returns> private string GetValue(int p_CodeId) { DataRow[] _Row = m_Code128.Select("ID='" + p_CodeId.ToString() + "'"); if (_Row.Length != 1) throw new Exception("验效位的编码错误" + p_CodeId.ToString()); return _Row[0]["BandCode"].ToString(); } /// <summary> /// 获得条码图形 /// </summary> /// <param name="p_Text">文字</param> /// <returns>图形</returns> private Bitmap GetImage(string p_Text, string sourceText,Graphics g=null) { char[] _Value = p_Text.ToCharArray(); int _Width = 0; for (int i = 0; i != _Value.Length; i++) { _Width += Int32.Parse(_Value[i].ToString()) * (m_Magnify + 1); } Bitmap _CodeImage = new Bitmap(_Width+4 , (int)m_Height + 12); Graphics _Garphics = g; //Pen _Pen; int _LenEx = 6; int _TopEx = 4; if (g == null) { Graphics.FromImage(_CodeImage); _LenEx = 2; _TopEx = 0; } for (int i = 0; i != _Value.Length; i++) { int _ValueNumb = Int32.Parse(_Value[i].ToString()) * (m_Magnify + 1); //获取宽和放大系数 if (!((i & 1) == 0)) { //_Pen = new Pen(Brushes.White, _ValueNumb); _Garphics.FillRectangle(Brushes.White, new Rectangle(_LenEx, _TopEx, _ValueNumb, (int)m_Height)); } else { //_Pen = new Pen(Brushes.Black, _ValueNumb); _Garphics.FillRectangle(Brushes.Black, new Rectangle(_LenEx, _TopEx, _ValueNumb, (int)m_Height)); } //_Garphics.(_Pen, new Point(_LenEx, 0), new Point(_LenEx, m_Height)); _LenEx += _ValueNumb; } _Garphics.DrawString(sourceText, new Font("宋体", 10f), new SolidBrush(Color.Black), new PointF(2, m_Height+_TopEx)); if (_Garphics != g) { _Garphics.Dispose(); } return _CodeImage; } /// <summary> /// 显示可见条码文字 如果小于40 不显示文字 /// </summary> /// <param name="p_Bitmap">图形</param> private void GetViewText(Bitmap p_Bitmap, string p_ViewText) { if (m_ValueFont == null) return; Graphics _Graphics = Graphics.FromImage(p_Bitmap); SizeF _DrawSize = _Graphics.MeasureString(p_ViewText, m_ValueFont); if (_DrawSize.Height > p_Bitmap.Height - 10 || _DrawSize.Width > p_Bitmap.Width) { _Graphics.Dispose(); return; } int _StarY = p_Bitmap.Height - (int)_DrawSize.Height; _Graphics.FillRectangle(Brushes.White, new Rectangle(0, _StarY, p_Bitmap.Width, (int)_DrawSize.Height)); _Graphics.DrawString(p_ViewText, m_ValueFont, Brushes.Black, 0, _StarY); } //12345678 //(105 + (1 * 12 + 2 * 34 + 3 * 56 + 4 *78)) % 103 = 47 //结果为starc +12 +34 +56 +78 +47 +end }
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  • 技术文摘MySql 如何查询条件自动切割某一列值后用in匹配。FIND_IN_SET
  • 2021/1/20 20:30:37
  • ...元素为2的行:​SELECT * FROM aa WHERE FIND_IN_SET(2,`text`);是不是很好用!
  • 评论:0 / 阅读:587
  • 技术文摘AutoUpdate软件自动更新,兼容wpf、winform
  • 2021/1/20 20:30:37
  • 图1:软件运行后检测更新组件​图2:各组件更新进度​图3:更新完成​ps:写了几个类,不好贴源码,附完整源码,需要的自行下载。。。下载地址:https://download.csdn.net/download/xukai515786/12056967
  • 评论:0 / 阅读:629
  • 技术文摘C#实现批量修改指定文件夹中文件的扩展名,可指定某种类型,可指定全部
  • 2021/1/20 20:30:37
  • ...>源文件如下:​以上还只是一层,每层文件夹下还有n多的子文件,如果手动自己一个个修改。OMG,想想都可怕!!以下是某个文件夹里的子文件。​好了,到这里,我们需要 做的事就是,让程序来做。程序要的思想就是,任何能用代码实现的东西,绝不让鼠标重复点击。上代码:/// <summary> /// 修改文件后缀 /// </summary> /// <param name="sourceExtension">源文件的后缀名,传空值时修改所有文件</param> /// <param name="extension">文件修改后的后缀名</param> private void UpdateExtension(string sourceExtension, string extension) { string foldPath = textBox1.Text; if (!string.IsNullOrEmpty(foldPath)) { //初始化文件夹对象 DirectoryInfo dir = new DirectoryInfo(foldPath); // 获取当前文件夹下的所有文件 //TopDirectoryOnly:在搜索操作中包括仅当前目录 //FileInfo[] files = dir.GetFiles("*.*", SearchOption.TopDirectoryOnly); FileInfo[] files = dir.GetFiles(sourceExtension == "" ? "*.*" : "*.js", SearchOption.AllDirectories); //遍历当前文件夹下的所有文件 for (int i = 0; i < files.Length; i++) { //获取并输出文件扩展名称 Console.WriteLine(Path.GetExtension(files[i].FullName)); //修改文件扩展名称 files[i].MoveTo(Path.ChangeExtension(files[i].FullName, extension)); //获取并输出文件扩展名称 Console.WriteLine(Path.GetExtension(files[i].FullName)); } MessageBox.Show("Complete!"); } }设置界面文件夹目录: //弹框选择文件夹 FolderBrowserDialog dialog = new FolderBrowserDialog { Description = "请选择文件夹" }; if (dialog.ShowDialog() == DialogResult.OK) { //获得文件夹路径 string foldPath = dialog.SelectedPath; textBox1.Text = foldPath; }调用方式:UpdateExtension("js", "txt");界面设计:​挺简单的,需要源码可以在个人简介找到联系方式!
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  • 技术文摘.net mvc增加用户恶意访问检测
  • 2021/1/26 18:19:41
  • 同一设备,禁止系统指定时间内多次访问
  • ... /// /// 检查用户是否快速点击 /// /// 毫秒 protected void CheckRequestSpeed(int Milliseconds) { string controllname = RouteData.Values["controller"].ToString().ToLower(), actionname = RouteData.Values["action"].ToString().ToLower(); if (!Security._IS_effect_click(controllname, actionname, Milliseconds)) { if (actionname != "clicktoofast") { string url = Request.Url.ToString(); int port = Request.Url.Port; Response.Redirect("/Common/Clicktoofast?returnUrl=" + url); } } else { string url = Request["returnUrl"]; if (actionname == "clicktoofast" && !string.IsNullOrEmpty(url)) { Response.Redirect(url); } } }主要实现:CheckRequestSpeedprotected void CheckRequestSpeed(int Milliseconds) { string controllname = RouteData.Values["controller"].ToString().ToLower(), actionname = RouteData.Values["action"].ToString().ToLower(); if (!Security._IS_effect_click(controllname, actionname, Milliseconds)) { if (actionname != "clicktoofast") { string url = Request.Url.ToString(); int port = Request.Url.Port; Response.Redirect("/Common/Clicktoofast?returnUrl=" + url); } } else { string url = Request["returnUrl"]; if (actionname == "clicktoofast" && !string.IsNullOrEmpty(url)) { Response.Redirect(url); } } }
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  • 技术文摘css中!important会不会对页面访问速度有影响?
  • 2021/1/29 17:05:54
  • 目前正在进行框架样式重构,发现用!important来重写花费时间在可控范围之内,那么问题来了,大量使用!important会对页面解析速度有影响吗?
  • ...样的:if (aIsImportant) { if (!HasImportantBit(aPropID)) changed = PR_TRUE; SetImportantBit(aPropID); } else { // ...并有专业人士给出了以下解释:/** * Transfer the state for |aPropID| (which may be a shorthand) * from |aFromBlock| to this block. The property being transferred * is !important if |aIsImportant| is true, and should replace an * existing !important property regardless of its own importance * if |aOverrideImportant| is true. * * ... */从上面可以看出,firefox对于!important规则的判断很简单:将包含!important的样式直接覆盖了正常生成的样式规则,然后如果解析到后面还有!important规则时,再和以前的important规则比较优先级。就是说,使用!important的CSS规则是置为了最高优先级,然后最高优先级中去判断应用那个样式。          结论就是,使用!important对于性能并没有什么负面影响。但是从可维护性角度考虑还是少用这个规则。不过这个规则在IE6中有bug(IE6 IE7(Q) IE8(Q) 不完全支持 !important 规则),使用的时候还要注意。
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  • 技术文摘c# 控制智能停车系统出入口道闸模块开关
  • 2021/3/31 11:45:37
  • ...h3>协议:ModbusTCP一如既往,首先来张demo截图:        a、按钮上的1,2分别代表两个道闸;       b、接触过开关控制器的都知道,2路组成一个开关,如指令 1,0代表开;0,1代表关,同时发1,0,1,0代表两头都开,反之则都关​开始了,上代码。。。直接上完整代码,需要可运行exe完整源码或程序的联系我无偿提供:using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using ModbusTCP; using System.Collections; using System.Threading; namespace WindowsFormsApplication1 { public partial class Form1 : Form { private ModbusTCP.Master MBmaster; string StartAddress = "200"; //读取开始地址 string DOStartAddress = "100"; //写入接口开始地址 private bool RecvieMode_502 = false; string dataSize = "16";//长度 byte uiSlaveID = 255;// private int Recvie_Count = 0; string redIP = "172.16.1.237"; //红外控制器IP public Form1() { InitializeComponent(); } private void btnConnect_Click(object sender, EventArgs e) { redIP = txtIP.Text; if (RecvieMode_502) { return; } try { // Create new modbus master and add event functions MBmaster = new Master(redIP, 502); MBmaster.OnResponseData += new ModbusTCP.Master.ResponseData(MBmaster_OnResponseData); MBmaster.OnException += new ModbusTCP.Master.ExceptionData(MBmaster_OnException); RecvieMode_502 = true; MBmaster.autoConnectOfBreak = false; MessageBox.Show("连接成功!!"); } catch (SystemException error) { MessageBox.Show(error.Message); } } // ------------------------------------------------------------------------ // Event for response data // ------------------------------------------------------------------------ private void MBmaster_OnResponseData(ushort ID, byte function, byte[] values) { // ------------------------------------------------------------------ // Seperate calling threads if (this.InvokeRequired) { this.BeginInvoke(new ModbusTCP.Master.ResponseData(MBmaster_OnResponseData), new object[] { ID, function, values }); return; } // Ignore watchdog response data if (ID == 0xFF) return; // ------------------------------------------------------------------------ // Identify requested data ushort Func = ID; ++Recvie_Count; if (Recvie_Count > 100000000) { Recvie_Count = 1; } bool[] bits = new bool[1]; if (Func > 0) { // Convert data to selected data type richTextBox1.Clear(); if (null != values) { int i = 1; int dzNo = (i - 1) * 4; BitArray bitArray = new BitArray(values); bool[] bs = new bool[bitArray.Count]; bitArray.CopyTo(bs, 0); if (bs.Count(a => a == false) == 15) { return; } bool[] bitsArr = new bool[bitArray.Count]; for (int k = 0; k < bitArray.Count - dzNo; k++) { bitsArr[k] = bs[k + dzNo]; richTextBox1.AppendText(Convert.ToInt32(bitsArr[k]).ToString()); } bits = bitsArr; } //接收成功 if (richTextBox1.Visible && !richTextBox1.IsDisposed) { richTextBox1.AppendText(string.Format("\r\n红外接收结果:{0} {1} {2} {3}\r\n", bits[0], bits[1], bits[2], bits[3])); } #region //if (null != values) //{ // BitArray bitArray = new BitArray(values); // bits = new bool[bitArray.Count]; // bitArray.CopyTo(bits, 0); // for (int i = 0; i < bits.Length; i++) // { // richTextBox1.AppendText(Convert.ToInt32(bits[i]).ToString()); // } //} #endregion //接收成功 // MessageBox.Show(bits.Length.ToString()); } } #region 通讯常提示事件 // ------------------------------------------------------------------------ // Modbus TCP slave exception // ------------------------------------------------------------------------ private void MBmaster_OnException(ushort id, byte function, byte exception) { // ------------------------------------------------------------------ // Seperate calling threads if (this.InvokeRequired) { this.BeginInvoke(new ModbusTCP.Master.ExceptionData(MBmaster_OnException), new object[] { id, function, exception }); return; } string exc = "Modbus says error: "; switch (exception) { case Master.excIllegalFunction: exc += "Illegal function!"; break; case Master.excIllegalDataAdr: exc += "Illegal data adress!"; break; case Master.excIllegalDataVal: exc += "Illegal data value!"; break; case Master.excSlaveDeviceFailure: exc += "Slave device failure!"; break; case Master.excAck: exc += "Acknoledge!"; break; case Master.excSlaveIsBusy: exc += "Slave is busy!"; break; case Master.excGatePathUnavailable: exc += "Gateway path unavailbale!"; break; case Master.excExceptionTimeout: exc += "Slave timed out!"; break; } // LogHelper.WriteLog(this.GetType(), exc); } #endregion #region 读取点 private void btnReadDisInp_Click(object sender, EventArgs e) { ushort ID = 2; ushort StartAddress = ReadStartAdr(); ushort Length = Convert.ToUInt16(dataSize); MBmaster.ReadDiscreteInputs(ID, StartAddress, Length, uiSlaveID); } private ushort ReadStartAdr() { // Convert hex numbers into decimal if (StartAddress.IndexOf("0x", 0, StartAddress.Length) == 0) { string str = StartAddress.Replace("0x", ""); ushort hex = Convert.ToUInt16(str, 16); return hex; } else { return Convert.ToUInt16(StartAddress); } } #endregion private void Form1_Load(object sender, EventArgs e) { } private void button1_Click(object sender, EventArgs e) { //ushort ID = 6; //ushort StartAddress = ReadStartAdr(); //data = GetData(Convert.ToByte(txtSize.Text)); //MBmaster.WriteMultipleCoils(ID, StartAddress, Convert.ToByte(txtSize.Text), data, GetSlaveID()); ChangDZ(Convert.ToInt32(textBox1.Text), Convert.ToBoolean(Convert.ToInt32(textBox2.Text)), Convert.ToBoolean(Convert.ToInt32(textBox3.Text))); } /// <summary> /// 开关道闸 /// </summary> /// <param name="dzNo"></param> /// <param name="b1"></param> /// <param name="b2"></param> private void ChangDZ(int dzNo, bool b1, bool b2) { ushort ID = 6; int sized = Convert.ToInt32(dataSize); ushort StartAddress = Convert.ToUInt16(DOStartAddress); byte[] data = new byte[sized]; bool[] bits = new bool[sized]; string s = richTextBox1.Text; int st = (dzNo - 1) * 2; bits[st] = b1; bits[st + 1] = b2; int dl = bits.Length / 8 + (bits.Length % 8 == 0 ? 0 : 1); data = new byte[dl]; BitArray ba = new BitArray(bits); ba.CopyTo(data, 0); if (MBmaster != null) { MBmaster.WriteMultipleCoils(ID, StartAddress, (ushort)sized, data, uiSlaveID); } } /// <summary> /// 开关道闸 /// </summary> /// <param name="b1">道闸1开</param> /// <param name="b2"> 1关</param> /// <param name="b3">2开</param> /// <param name="b4">2关</param> private void ChangDZ2(bool b1, bool b2, bool b3, bool b4) { lock (MBmaster) { int i = Convert.ToInt32(1); int dzNo = (i - 1) * 2 + 1; ushort ID = 6; int sized = Convert.ToInt32(dataSize); ushort StartAddress = Convert.ToUInt16(DOStartAddress); byte[] data = new byte[sized]; bool[] bits = new bool[sized]; string s = richTextBox1.Text; int st = (dzNo - 1) * 2; bits[st] = b1; bits[st + 1] = b2; bits[st + 2] = b3; bits[st + 3] = b4; int dl = bits.Length / 8 + (bits.Length % 8 == 0 ? 0 : 1); data = new byte[dl]; BitArray ba = new BitArray(bits); ba.CopyTo(data, 0); if (MBmaster != null) { MBmaster.WriteMultipleCoils(ID, StartAddress, (ushort)sized, data, uiSlaveID); } } } private void button2_Click(object sender, EventArgs e) { //ChangDZ(1,false, false); //ChangDZ(1,Convert.ToBoolean(Convert.ToInt32(textBox4.Text)), Convert.ToBoolean(Convert.ToInt32(textBox5.Text))); //ChangDZ(2, false, false); //ChangDZ(2, Convert.ToBoolean(Convert.ToInt32(textBox6.Text)), Convert.ToBoolean(Convert.ToInt32(textBox7.Text))); ChangDZ2(false, false, false, false); Thread.Sleep(3000); ChangDZ2(Convert.ToBoolean(Convert.ToInt32(textBox4.Text)), Convert.ToBoolean(Convert.ToInt32(textBox5.Text)), Convert.ToBoolean(Convert.ToInt32(textBox6.Text)), Convert.ToBoolean(Convert.ToInt32(textBox7.Text))); //Thread.Sleep(5); } private void btn_kg_Click(object sender, EventArgs e) { ChangDZ2(false, false, false, false); Thread.Sleep(getMiCeccond()); ChangDZ2(true, false, false, true); } /// <summary> /// 默认为两秒 /// </summary> /// <returns></returns> int getMiCeccond() { int a = 0; int.TryParse(textBox8.Text, out a); return a != 0 ? a : 2000; } private void btn_gk_Click(object sender, EventArgs e) { ChangDZ2(false, false, false, false); Thread.Sleep(getMiCeccond()); ChangDZ2(false, true, true, false); } private void btn_kk_Click(object sender, EventArgs e) { ChangDZ2(false, false, false, false); Thread.Sleep(getMiCeccond()); ChangDZ2(true, false, true, false); } private void btn_gg_Click(object sender, EventArgs e) { ChangDZ2(false, false, false, false); Thread.Sleep(getMiCeccond()); ChangDZ2(false, true, false, true); } private void btn_1k_Click(object sender, EventArgs e) { ChangDZ2(false, false, false, false); Thread.Sleep(getMiCeccond()); ChangDZ(1, true, false); } private void btn_1g_Click(object sender, EventArgs e) { ChangDZ2(false, false, false, false); Thread.Sleep(getMiCeccond()); ChangDZ(1, false, true); } private void btn_2k_Click(object sender, EventArgs e) { ChangDZ2(false, false, false, false); Thread.Sleep(getMiCeccond()); ChangDZ(2, true, false); } private void btn_2g_Click(object sender, EventArgs e) { ChangDZ2(false, false, false, false); Thread.Sleep(getMiCeccond()); ChangDZ(2, false, true); } } }
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  • 技术文摘c# 自定义加密解密工具,避免MD5加密不可逆或者DES对称加密容易被破解问题。
  • 2021/3/31 11:50:41
  • ...加密秘钥 /// <summary> /// 加密密钥(8位) /// </summary> public static string KEY_64 = "00000000";2、定义8位的初始化向量 /// <summary> /// 加密初始化向量(8位) /// </summary> public static string IV_64 = "88888888";3、通过初始化向量与加密秘钥生成加密内容 /// <summary> /// 加密 /// </summary> /// <param name="data"></param> /// <returns></returns> public static string Encode(string data) { byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64); byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64); DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider(); int i = cryptoProvider.KeySize; MemoryStream ms = new MemoryStream(); CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateEncryptor(byKey, byIV), CryptoStreamMode.Write); StreamWriter sw = new StreamWriter(cst); sw.Write(data); sw.Flush(); cst.FlushFinalBlock(); sw.Flush(); return Convert.ToBase64String(ms.GetBuffer(), 0, (int)ms.Length).Replace("=", "φ"); }4、通过初始化向量与加密秘钥对加密内容进行解密 /// <summary> /// 解密 /// </summary> /// <param name="data"></param> /// <returns></returns> public static string Decode(string data) { try { byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64); byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64); byte[] byEnc; try { byEnc = Convert.FromBase64String(data.Replace("φ", "=")); } catch { return null; } DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider(); MemoryStream ms = new MemoryStream(byEnc); CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateDecryptor(byKey, byIV), CryptoStreamMode.Read); StreamReader sr = new StreamReader(cst); return sr.ReadToEnd(); } catch { return ""; } }5、到这里就大功告成啦!
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  • 技术文摘SqlServer,Mysql数据同步系统,适用于企业数据库做数据迁移。
  • 2021/3/31 11:51:15
  • 1、系统主界面​2、数据库连接配置,本地为sqlserver,服务器为mysql,如果是mysql迁移到sqlserver可以适当的修改源码就可以实现。​​3、支持部分表同步,需要同步哪些表自己进行设置​​4、同步日志查看,包括建表,同步了多少条数据,成功多少失败多少,未捕获的错误异常等等详细日志信息。​5、更多功能自行下载后运行查看即可。。。完整下载地址:https://download.csdn.net/download/xukai515786/11117125
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  • 网站公告关于站点启用HTTPS访问的通知
  • 2021/4/2 11:38:08
  • ...text-align: justify;">各用户:  为进一步加强凯特云安全体系建设,加强对用户个人信息的安全保护,即日起本网站将启用https安全访问协议。请大家注意新的网站访问方式,相关注意事项通知如下:  1.正常情况下,用户在访问网站时无需做任何修改即可正常访问。  2.以主站为例,使用http://www.ktblog.top传统http模式访问时,浏览器会自动跳转到https://www.ktblog.top,建议更新收藏夹相关链接。
  • 评论:1 / 阅读:1758