说明：  一个非常小的程序，但却毫不简单．程序使用了Windows的内存越权读写API.实现了对程序自身代码的内存中动态修改,可以高效执行任意指令.例子中动态修改了一个没有意义的空函数,实现了VB不可能编译出来的移位指令.
(A very small program, but not simple. Procedures for the use of Windows to read and write memory ultra API. Realize their own code of procedure in the dynamic modification of memory, can be efficient to execute arbitrary commands. Examples of dynamic modified the meaning of a space function, realize the VB compiler can not shift out of bit instructions.)