本例子将向这些人展示了共享软件加密和解密的一般技术。这些技术很简单，但只要大家动脑筋，就会从其中发掘出很多有用的东西-This example will show these people the sharing software encryption and decryption of the general technology. These techniques are simple, but as long as we use our brains, will be excavated