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RSS订阅原创 Python Apriori
class Multi_Item: def __init__(self): self.itemset = [] self.support = 0 def __str__(self): return "{}:{}".format(self.itemset, self.support) def set_support(self)...
2019-12-22 15:26:22
514
原创 python 二进制异或
def dec2bin(dec): result = '' if dec: result = dec2bin(dec // 2) return result + str(dec % 2) else: return resultdef xor(x, y): return int(x, 2) ^ int(y, 2...
2019-12-09 12:03:44
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原创 Python 处理RGB和RGBA图像，有透明图像部分的粘贴，paste->mask参数
from PIL import Imageimport numpy as npdef trans(img):# *********** Begin **********## 编写函数依次处理每个像素点# 要求:若r、g、b、的均值大于230 则表示该像素的颜色接近白色,属于背景中的像素点,将其背景色设置为透明。否则将该像素的颜色替换为黑色。 img = img.convert...
2019-11-24 12:59:16
3715
原创 python 元组操作
color = color[:-1] + (100,) #[:-1]除了最后一个取全部 加,才是元组类型中的元素，否则是int
2019-11-18 12:32:15
294
原创 Python学习 - 冯诺伊曼体系结构建模与模拟 之TOY模型机
mem = [0] * 1000 # 主存reg = [0] * 10 # 通用寄存器pReg = 0 # 程序计数器iReg = 0 # 指令寄存器res = 0 # 存放输出结果# 加载TOY2程序def loadProgram(file): global pReg, iReg, reg, mem # 全局变量声明 # *********** Beg...
2019-11-13 09:44:50
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原创 OpenCV4.1.1 + contrib VS2017环境配置
contrib各个版本下载地址：https://github.com/opencv/opencv_contrib/releasesContrib主要是需要face相关的文件，属于一个扩展包吧，需要下载cmake编译source选择OpenCV4.1.1中的sourcesbuild选择一个新文件夹，为了生成编译后的文件第一次点击Configure会让你选择VS版本，记得选择对应系统...
2019-09-24 08:41:18
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原创 OpenCV 图像缩放
//基于水平间隔Mat imageReduction1(Mat &srcImage, float kx, float ky){ int nRows = cvRound(srcImage.rows * kx); int nCols = cvRound(srcImage.cols * ky); Mat resultImage(nRows, nCols, srcImage.typ...
2019-09-24 08:22:13
365
原创 OpenCV 读取摄像头画面卡顿问题
//画面如果分辨率比较高，需要将帧图片进行压缩后再进行识别resize(gray, graysmall, Size(gray.cols / 3, gray.rows / 3));cascade.detectMultiScale(graysmall, rects, 1.1, 3, 0 | CASCADE_SCALE_IMAGE , Size(30,30)); for (auto it =...
2019-09-21 10:05:35
8664
原创 OpenCV 简单识别人脸的小程序
#include <opencv2/opencv.hpp>#include <opencv2/highgui/highgui.hpp>#include <opencv2/imgproc/imgproc.hpp>#include <opencv2/face.hpp>#include <iostream>#include <...
2019-09-19 09:13:25
401
原创 根据字符串动态实例化，调用静态泛型方法并动态指定泛型类型
private void DeleteById(HttpContext context){ string method = context.Request.Params["method"].ToString(); string entityName = method.Substring("Delete".Length); Assembly assembly = As...
2019-05-21 15:36:54
822
原创 js 监听iframe加载完成事件，并动态修改iframe内嵌页样式，动态iframe高度
<script type="text/javascript"> $(document).ready(function (e) { var iframe = document.getElementById("OfficeMain"); if (iframe.attachEvent) { ...
2019-04-26 11:04:07
6105
原创 asp.net向前台页面动态添加div，span，span中嵌入button
页面中先建好一个Panel 名称为pnlMain，可以写在Page_Load事件或者Page_Init事件protected void Page_Load(object sender, EventArgs e){ Finally final = BllFinally.GetByWhereADO(t => t.stuUserId == LoginUser.CurrentUser...
2019-04-25 16:37:22
2650
原创 Asp.net 使用Ajax动态添加静态页面数据
<script type="text/javascript"> $.ajax({ type: "post", url: "HandlerDeptData.ashx", dataType: "json", async: false, ...
2019-04-24 15:24:17
450
原创 异步下载文件的一个读取文件占用问题
using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite))使用FileShare模式解决线程文件占用问题
2019-04-19 13:11:01
396
原创 Dev TreeList绑定数据源后按某列值排序
tvLLeft.DataSource = lst;tvLLeft.KeyFieldName = "Id";tvLLeft.ParentFieldName = "ParentId";//排序tvLLeft.Columns[0].SortIndex = 0;tvLLeft.Columns[0].SortMode = DevExpress.XtraGrid.ColumnSortMode.V...
2019-04-16 08:39:44
2475
原创 XmlHelper
using System;using System.Collections.Generic;using System.Data;using System.IO;using System.Linq;using System.Text;using System.Xml;namespace Intesim.Common{ public class XmlHelper : ID...
2019-04-15 08:50:55
437
原创 ExcelHelper
using NPOI.HSSF.UserModel;using NPOI.SS.UserModel;using NPOI.XSSF.UserModel;using System;using System.Data;using System.Diagnostics;using System.IO;namespace Intesim.Common{ /// <summ...
2019-04-15 08:50:11
713
原创 FileHelper
using System;using System.Collections.Generic;using System.Diagnostics;using System.IO;using System.Linq;using System.Text;using System.Windows.Forms;namespace Intesim.Common{ public cla...
2019-04-15 08:48:33
297
原创 BaseExtend
using Intesim.Global;using System;using System.Collections.Generic;using System.ComponentModel;using System.Linq;using System.Text;using System.Text.RegularExpressions;namespace Intesim.Commo...
2019-04-15 08:48:00
267
原创 二维数组转为DataTable，转换后插入一列序号列
/// <summary>/// object二维数组转换为DataTable/// </summary>/// <param name="obj"></param>/// <returns></returns>public static DataTable objectTwoDimensionToDataTabl...
2019-04-02 11:10:20
335
原创 Dev NavBarControl中嵌入TreeList并实现多级菜单
/// <summary>/// 初始化左侧树形结构/// </summary>private void InitNavBarControl(){ navBarTree.Groups.Clear(); NavBarGroupControlContainer container = null; TreeList tv = null; ...
2019-03-29 08:01:14
2608
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原创 Dev TreeList 取消内部拖拽
private void tv_DragOver(object sender, DragEventArgs e){ e.Effect = DragDropEffects.None;}
2019-03-29 07:58:48
590
原创 Dev TreeList 手动填充数据（父子节点不是同一实体类型）
TreeListColumn colCode = new TreeListColumn() { Caption = "Code"};TreeListColumn colName = new TreeListColumn() { Caption = "名称"};tv.Columns.Add(colCode);tv.Columns.Add(colName);tv.Columns[0].V...
2019-03-29 07:57:40
775
原创 Dev 设置GridControl的选择列Selection为不显示
gv.OptionView.ShowGroupPanel = false;//隐藏Panelgv.OptionSelection.MultiSelect = True;//多选gv.OptionSelection.MultiSelectMode = CheckBoxRowSelect;//开启多选框gv.OptionSelection.ShowCheckBoxSelectionColumn...
2019-03-27 16:33:57
2167
原创 TreeList 拖拽 通过节点位置获取信息
private void tv_DragDrop(object sender, DragEventArgs e){ TreeList tl = (sender as TreeList); TreeListHitInfo info = tl.CalcHitInfo(tl.PointToClient(new System.Drawing.Point(e.X, e.Y))); ...
2019-03-25 08:29:04
534
原创 TreeList 绑定数据源
tl.DataSource = list;//绑定数据源tl.PopulateColumns();//根据数据源自动生成列
2019-03-22 11:12:13
943
原创 Dev GridControl重新获取选中项焦点
//重新获取选中项焦点dgvParam.ClearSelection();dgvParam.SelectRow(index);dgvParam.FocusedRowHandle = index;gcParam.RefreshDataSource();
2019-03-21 13:00:09
1176
原创 Dev RichEditControl查找指定字符串并改变背景颜色
DocumentRange[] ranges = this.recScript.Document.FindAll(string.Format("%{0}%", parName), SearchOptions.CaseSensitive);if(!ranges.HasValue()){ return;}foreach (var item in ranges){ var...
2019-03-20 09:13:23
1170
原创 非二叉树 后序遍历非递归
public partial class Tree{ public string value; public IList<Tree> children; int flag = 0; //节点遍历次数}Tree tree = new Tree() { value = "Root" };tree.children = new List<Tree&g...
2019-03-15 09:40:43
591
原创 Excel VBA 当前文件另存为txt
Sub saveTxt() Application.DisplayAlerts = False ThisWorkbook.SaveAs Filename:=ThisWorkbook.Path & "\bom_empty.txt", _ FileFormat:=xlText, CreateBackup:=False Application.Displ...
2019-03-14 13:24:15
6319
原创 C# 反射数据库数据过程中值类型存在DBNull的处理方法
GeliRvTask task = new GeliRvTask();foreach (var item in task.GetType().GetProperties()){ if (btn.EditorCell.GridRow.Cells[item.Name].Value != System.DBNull.Value) { item.SetValue(t...
2019-03-12 15:25:11
584
原创 Aspose 操作Word书签插入内容
Document doc = new Document(reportFile);DocumentBuilder builder = new DocumentBuilder(doc);foreach (Bookmark bm in doc.Range.Bookmarks){ builder.MoveToBookmark(bm.Name); if(bm.Name == "...
2019-03-12 08:06:15
4807
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原创 C# ~运算符
char c = 'a';c = (char)(c & ~0x20); //32 => 00100000 => 11011111 & 01100001 => 01000001 => 'A'//0x代表十六进制
2019-03-07 09:27:46
474
原创 SqlSugar 增加自定义Description和命名空间
/// <summary>/// 生成实体类/// </summary>/// <param name="entityName"></param>/// <param name="filePath"></param>/// <returns></ret
2019-03-07 07:47:42
1504
原创 SqlSugar 提示 - 需要引用MySql.Data.dll引用MySql.Data.dll
项目中添加App.Config加入如下内容<runtime> <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> <dependentAssembly> <assemblyIdentity name="MySql.Data" publicKeyTok...
2019-03-06 12:55:25
3796
原创 C# 动态创建Lambda表达式
Expression<Func<T, bool>> expr = Expression.Lambda<Func<T, bool>>( Expression.Equal( Expression.Property(Expression.Parameter(typeof(T), "e"), "DeleteFlg"), ...
2019-02-28 09:17:08
792
原创 C# 测试一段代码的运行时间
Stopwatch stopWatch = new Stopwatch();/开始stopWatch.Start();Type type = a.GetExportedTypes().First(t => t.Name == item.menuType);//要测试的代码stopWatch.Stop();TimeSpan ts = stopWatch.Elapsed;d...
2019-02-27 16:58:23
833
centos7.7环境 python3.6.8 rpm离线安装包
2023-02-07
Qt5:多文档功能查看器（新增视频文件播放）
2018-07-10
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