实体作为参数传递，到底是值传递还是引用传递
实体直接作为参数传递，最后实体参数的属性值也会改变1.新建一个Student实体类public class Student { private String name; private Integer age; public Student() { } public Student(String name, Integer age) { this.name = name; this.age = age; } p
