摘要: 1.新建两个实体,一个班级有多个学生 public class Student { public int StudentId { get; set; } public string StudentName { get; set; } public Grade Grade { get; set; } 阅读全文
posted @ 2018-01-10 11:03 BornReady 阅读(665) 评论(0) 推荐(0) 编辑