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基于matlab用帧差法提取背景，很实用的一个小程序。(Matlab based on frame difference method to extract the background, it is a useful small program.)

用JSP实现的一个网上书店的程序，其中采用了多种数据技术。是一个有典型意义的网页程序(an online bookstore in the procedures, which use a variety of data technology. It is a typical procedure website)

Java提供的API类BigDecimal，用来对超过16位有效位的数进行精确的运算。双精度浮点型变量double可以处理16位有效数。在实际应用中，需要对更大或者更小的数进行运算和处理。(BigDecimal Java API classes provided for more than 16 significant bits of the number of precise calculations. Double-precision floating-point variables can handle double the number of 16-bit effective. In practice, the need for a larger or smaller number of computing and processing.)

获取本机网卡的mac地址- Gains this machine net card the mac address

Direct torque control asynchronous machine

java+mysql 图书管理系统（源码+数据库）

vfp client server design

说明：  根据输入的十六进制数据，计算出对应的CRC16值，减少人工计算的复杂性(According to the input hexadecimal data, calculate the corresponding CRC16 value, reduce the complexity of manual calculation)

ripemd160 block asm data order Source Code.

用最新的百度API写的关于地图的例子，很有启迪意义，有需要的可以研究一下(Write on the map with the latest Baidu API examples, very instructive, need to study)