由VB编写的DDE通信例子，可以实现两个EXE之间的通信，可以实现另类的多线程。使用时，Child.exe与Main.exe放于同一个文件夹内，分别启动后，在“发送”文本框内输入文本，即可以对方exe的“接收”文本框内接收到。 -Prepared by the VB DDE communication example, can achieve the communication between the two EXE, can achieve alternative multi-thread

cmd管道，可以实时接受输出和输入与在cmd下操作没有区别(The CMD pipeline accepts output and input in real time, and makes no difference to the operation under CMD)

VB开发的程序,可实现锁住计算机直到输入正确的口令,(The program developed by VB can lock the computer until the correct password is entered.)