chapter4_2

串口通过modbaus协议控制继电器，读取开关输入的PC上位机源程序(Serial control relay through modbaus agreement, read the PC host computer switch input source)

VB6 源码实时监测局域网计算机的连接状态 (VB6 LAN connection status of the computer s real-time monitoring)

基于VB的选择家用电脑程序（笔记本或者台式机），语言注释为法语。(Un pogramme pour choisir un ordinateur chez vous.)

his small example receives files over a network listens on,(His small example receives files over a network listens on,)

RFID communicate. This is for reading rfid card.

学习VB的绘图程序设计,比较简单,这里有一个很易学的程序.可以在此基础上编写出很多实用的程序啊.(learning VB mapping program design, relatively simple, Here is a very easy to learn the procedures. This can be prepared on the basis of many practical procedures ah.)

VB6.0批量打印证书，本源码不但可以作为证书打印的例子，还可作为证书界面设计的例子，虽然还不是很精美，但至少来说给出了一个Vb证书设计的大致框架，对需要此方面要求的VB编程者是个参考。(VB6.0 batch printing certificates, the source not only can be used as certificate printing example, also can be used as a certificate interface design examples, though not very elegant, but at least it gives a framework design of Vb certificate of need, the requirements of the VB program is a reference.)

在程序中得到dos窗口的显示输出,如在程序中执行dos命令,结果要返回到程序中,()

用MSCOMM控件控制FXPLC全部输出/全部关闭/单独输出(MSCOMM control with full output control FXPLC/All off/single output)

VB经典入门教程，非常适合初学者入门，非常实用(Introduction to the classic VB,Suitable for beginners to use,Very practical)