一个捉虫子游戏（C＋＋课程设计时做的）。 通过该实践来加深理解面向对象编程里类的设计和使用（比如说继承，访问方式）-A catch bugs game (c++ course design do). Through the practice to deepen our understanding of the object-oriented programming for the design and use of inheritance, access method (for example)