sger123的博客

在gradle.properties里添加android.injected.testOnly=false

layout：javaBean//学生类public class Student { private int stu_id; //学号 private String stu_name; //姓名 private char stu_sex;//性别 private float weight;//体重 private String stu_pwd; //密码 public Student(int stu_id, String st