用Python编写奇偶分数求和函数

ID卡识别实例

邮件发送模块，使用之前需要安装Jmail组件，然后在代码中设置SMTP服务器等信息。-E-mail module, prior to use Jmail need to install components, and then in the code set up SMTP server information.

说明：  适合初学者编程小程序，适合熟悉python基本使用，可重复性强(Suitable for beginners to program small programs, suitable for familiar with the basic use of python, strong repeatability)

有一存储很多商品数据(每件商品的属性先后包括：品名、规格、单价(有小数位)、数量，数据的最长长度分别为20、10、6、5，在文件中以空格为分隔，每个商品的数据占一行)的文本文件，从键盘输入某种商品的品名，要求在文件中查找有无相应品名商品(可能有多条记录或没有)，若有则在屏幕上显示出相应的商品的品名、规格、数量、单价(显示时，品名、规格、数量、单价之间使用逗号(,)作分隔，单价显示时只显示2位小数)，若无则显示没有相应品名的商品。 (There are a lot of goods stored data (each item has the attributes include: name, size, price (with decimal places), quantity, the maximum length of the data were 20,10,6,5, a space in the file is separated The data for each item per line) text file, input from the keyboard of a commodity name, asked whether the corresponding file for the product name (may be multiple records or did not), if it is displayed on the screen of the corresponding product name, size, quantity, unit price (display, name, size, quantity, unit price between a comma (,) as a separator, price display shows only two decimal places), if not then show no corresponding product name .)

说明：  基于UDP协议的文件传输系统，采用python语言编程实现。(File transfer system based on UDP protocol.)

介绍了一种快速求解复杂表达式偏导的方法，此方法能够快速求解偏导(Describes a fast and solving complex expressions partial derivative method, this method can quickly solve the partial derivative)

断点续传原理及源程序-HTTP principle and source

说明：  该程序基于python对电力系统仿真进行分析。(The program is based on Python to analyze the power system simulation.)

isodata聚类算法流程图，开发环境可以是vc,也可以是matlab。(Isodata clustering algorithm flow chart, the development environment can be a vc, also can be the matlab)

说明：  波形中的波动部分在上下桥臂电容电压叠加时相互抵消， 从而保证了直流电压的稳定。仿真波形表明(The fluctuation part of waveform cancels each other when the capacitor)