代理模式02

说明：  Python编程，天气爬虫实现，，，，，，，，，，，(Python programming, weather crawler implementation,,,,,,,,,,,)

说明：  Cartoon animation effect is a kind of 3D rotation according to the position of the mouse, and with light and shadow effects, the effect is very cool.

说明：  一种简单的二维离散点的最小二乘法拟合曲线的生成(Least square fitting of two-dimensional discrete points)

基于MUSIC算法的矢量水听器阵源方位估计，用于空间谱估计目标方位(DOA estimation based on MUSIC algorithm using an array of vector hydrophones )

说明：  CH341A driver for windows 10

基于可编程跨导运算放大器POTA低通有源滤波器设计。该文给出了基于可编程跨导运算放大器(POTA)的有源滤波器设计方法，能在一定范围内实现跨导值程控调节, 提高调节精度和准确度。并且利用Jacobi 法求解相似对角形矩阵，避免解高次方程的难题。所设计的有源滤波电路不易受分布电容的影响，稳定性好、灵敏度低。本文给出了设计实例，显示了该方法的优点。-Based on programmable transconductance operational amplifier POTA low-pass active filter design. In this paper, based on the programmable transconductance amplifier (POTA) of the active filter design method that can realize in a certain range transconductance value of program-controlled adjustment, improve precision and accuracy regulation. Jacobi method and use a similar matrix of angular, high-equation solution to avoid problems. Designed active filter circuit less susceptible to the effects of distributed capacitance, good stability, low sensitivity. In this paper, design examples, showing the advantages of the method.

使用qt-c++來做為gui應用的教學檔，包含建立環境與第一次的Project建立(Use qt c++ to do the teaching file for gui applications, including the establishment of the environment and the establishment of the first Project)

5级菜单 多级依次展开的CSS jQuery导航菜单，自带的示例中，有一款是带有动画缓冲效果的菜单展开风格，另一种则无动画，这款菜单效果支持比较多级的子菜单项，相信可满足那些分类比较多、比较细的网站使用，在火狐和chrome下也表现优秀。

输入一个字符显示其ASCII码的小程序-importation of a character ASCII show the small program

jquery电子杂志幻灯片特效幻灯片杂志特效图片切换(Special effect picture switching of slide based on jQuery general purpose slide)