使用KVC对person的属性进行赋值

     [aperson setValue:@"yadong" forKey:@"name"];

     [aperson setValue:@"man" forKey:@"sex"];

     [aperson setValue:@23 forKey:@"age"];

     NSLog(@"%@",[aperson valueForKey:@"name"]);  // aperson.name

      使用键值路径复合赋值

    // aperson setValue:<#(id)#> forKeyPath:<#(NSString *)#>

    // 创建 person 对象

    Person *aperson = [[Person alloc] init];

    // 使用字典对person的属性进行赋值(熟练掌握)

    NSDictionary *dic = @{

                          @"name":@"yadong",

                          @"sex":@"man",

                          @"age":@22

                          };

    // 赋值

    [aperson setValuesForKeysWithDictionary:dic];

    NSLog(@"%@",aperson);

解析 plist 文件，主要看root。是什么建什么

    NSString *patch = [[NSBundle mainBundle] pathForResource:@"Person" ofType:@"plist"];

    NSArray *array = [NSArray arrayWithContentsOfFile:patch];

    // NSLog(@"%@", array);

    // 把字典转化为person模型

    NSMutableArray *personArray = [NSMutableArray array];

    for (NSDictionary *dict in array) {

        Person *p = [[Person alloc] init];

        [p setValuesForKeysWithDictionary:dict];

        [personArray addObject:p];

    }