索引器实战:对象数组访问技巧及命名空间以及项目文件规范【1】,创建ClassRoom对象ClassRoom cs = new ClassRoom() { Id=67,Name = "机器视觉"}; cs.Add(new Student() { Name = "张三", Age = 19 }); cs.Add(new Student() { Name = "不吃香菜", Age = 19 }); cs.Add(new Student() { Name = "猪猪小野", Age = 19 }); cs.Add(new Student() { Name = "东