很简单的钩子程序，希望对初学者有所帮助， 作为软件开发人员，希望大家重视技术的学习，而不要做违背道德的事，钩子就是试金石-very simple hook program, and I hope to help beginners, as software developers, we hope that the importance of learning technology, and not be contrary to morality, the hook is the touchs