python_how_to_program

一套很经典的多级后台管理菜单代码，先看一看风格，是不是很熟悉的风格，对的，如果你很早就接触CMS的话，你就能看出这套后台管理菜单来源于动网，当然了本款菜单是来自一个在线的超市管理系统中，同样的折叠展开风格的管理菜单，蓝色风格，看上去非常不错。

说明：  网络数据包捕获查看工具, 支持三种 数据包捕获方式： 1、Raw嗅探 2、Hook指定进程API，截获数据包 3、端口数据转发(Network Packet Capture and View Tool supports three ways of data packet capture: 1. Raw Sniffer 2. Hook Specifies Process API, Intercepts Packet 3, Port Data Forwarding)

csharp中异步变同步的基础类库,可以用来把大量的异步过程在同步过程中实现，可以参考相关的文章，因为原文章中这段代码都不完整，此处做了整理，把关键的代码补齐了-AsyncEnumerator and interlock source

粒子群优化算法 人工智能 优化算法 信号去噪 非常好用(Particle swarm optimization algorithm, artificial intelligence optimization algorithm, signal denoising is very easy to use)

hao123网址之家导航站源码，完整已测试

百度地图定位，百度实时定位,精准定位 百度地图定位，百度实时定位,精准定位(Baidu map positioning, baidu real-time positioning, precise positioning of baidu map positioning, baidu real-time positioning, precise positioning)

编辑框是常用控件之一，同时也是一种完全自实现较为繁琐的控件。本例实现了对编辑框的简单的自绘制，在保留其自身的强大功能的前提下，实现了编辑框的边框、背景、文字颜色以及禁用态的各种颜色的替换。 要想重绘，我们必须知道要绘什么。通过观察默认的编辑框我们可以很清楚的看到编辑框有三个最基础的部分需要我们绘制，他们分别是3D边框、背景和文字，再进一步分析我们会发现他们是一个基本窗口的两个部分，即客户区和非客户区。这样一来我们就知道应该用什么函数有针对性的绘制什么区域了，由于提供了源码，这里仅就基本原理和技术细节加以讨论，不过多地罗列代码。(Editor box is one of the common controls, and it is also a kind of control which is completely self-realization and tedious. This example realizes the simple self-drawing of the edit box, and realizes the replacement of the border, background, text color and various colors of the disabled state of the edit box while retaining its powerful function. To redraw, we must know what to draw. By observing the default edit box, we can clearly see that there are three most basic parts of the edit box that we need to draw. They are 3D border, background and text. Further analysis shows that they are two parts of a basic window, namely, client area and non-client area. In this way, we know which function should be used to draw which area. Since the source code is provided,)

主要介绍了一为圆对称艾里函数的生成，得出一维艾里函数的图像(This paper mainly introduces the generation of circular symmetric Airy function and obtains the image of one-dimensional Airy function.)

利用matlab进行kalman滤波的仿真-Carried out using kalman filtering matlab simulation

吴恩达机器学习 machine learing ex1编程代码实现(machine learing code1)