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OPC 历史数据存取规范基于COM，要将其移植到.NET 平台，需要解决编排过程中数据类型转换、接口实现、参数传递等问题。研究C#接口属性类、.NET 托管和非托管的转换后，解决了OPC 历史
AVR单片机入门及C语言高效设计实践（六） ATMEAG16L的定时／计数器 ATMEAG16L有两个8位定时／计数器（T／C0、T，C2）和一个16位定时／计数器T/C1）。每一个计数器都支持PWM（脉冲宽度调制）输出功能。PWM输出在...
dnicholson - Jul 14, 2006 * Fixed usbdev PROGRAM so that it works with the BusyBox sh. Thanks to Anthony Wright.
This program uses the database created by MakeAPIDB. It opens a connection * to a database using the same property fil...
With a worldwide community of users and more than a million dedicated programmers, Perl has proven to be the most effect...
ITU-T RECOMMENDATION V.250 SERIAL ASYNCHRONOUS AUTOMATIC DIALLING AND CONTROL 99年5月版本
Web Conferencing system allow you to conduct the web conference around the globe. The system allow to share the desktop ...