java里的return public class book {private int id;private String name;private String dategory;public String getName(){int id=0;setName("java");return id+this.name;}private void setName(String name){this.name=name;}public book getBook(){return this;}
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/26 00:32:22
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