使用pwm6输出pwm信号，通过滤波实现DAC转换。

本程序为VB对输入输出口的编程,想要深入了解VB的不容错过.- This procedure is VB to inputs the outlet the programming, wants thoroughly to understand VB not not fault-tolerant

给自己用的实用日程提示工具，初学者可以看懂的东西，如果需要数据库请自己试着编写，不难-to his own agenda suggest practical tools, beginners can understand things. If the database please try to prepare ourselves, it is not difficult

本程序是采用Rational rose 2003做的UML案例额，是初学者不得多得的参考。会有助于学习Rational rose 2003-This procedure is done using Rational rose 2003 case of the amount of UML, a beginner can not get a reference number. Will help to learn Rational rose 2003

一本讲信号的书籍很不错的 一本讲信号的书籍很不错的-A stress signal is a very good book

给出给定LL(1)文法的FIRST和FOLLOW集，求出相应的分析表以及对给定字符串进行分析，判断是否属于该文法 -Give a given LL (1) grammar of the FIRST and FOLLOW sets, calculated the corresponding analysis table, as well as an analysis of the given string to determine whether or not belong to the grammar

将一个位图转换成一个区域-to a bitmap into a regional

删除IE相关历史记录-delete IE related historical records

内容包括VC++网络编程的诸多方面，例如因特网编程、串口通信等等。很有参考价值-Includes VC++ Many aspects of network programming, such as Internet programming, serial communications and so on. Useful reference

The simple two-dimensional CAD manufacture, also has some functions not to realize the board.-The simple two-dimensional CAD manufactu re. also has some functions not to realize the board .

半透明窗口,短小精悍,使用方便,操作简单! -translucent window, small and easy to use, simple!