4.3自定义类
1.class Xxx{field字段 constructor构造器 method方法}class Employee
{//实例字段private String name;private double salary;private LocalDate hireDay;//构造器,总是和new操作符一起调用public Employee(String n,double s,int year,int month,int day){namen;…
2026/8/8 7:58:35