父类·无参数构造方法: A Person. 子类·调用父类”无参数构造方法“: A chinese coder. 父类·含一个参数的构造方法: An individual's name is codersai 子类·调用父类”含一个参数的构造方法“: his identify is codersai 父类·含一个参数的构造方法: Someone's identify is codersai 子类·调用父类”含一个参数的构造方法“: his title is codersai 子类:调用子类具有相同形参的构造方法:his age is 18 Mastering ‘... https://napoleons999qjc1.tusblogos.com/profile