HMQuestion.h 

#import 
     
      @interface HMQuestion : NSObject@property (nonatomic, copy) NSString *answer;@property (nonatomic, copy) NSString *icon;@property (nonatomic, copy) NSString *title;@property (nonatomic, strong) NSArray *options;- (instancetype)initWithDict:(NSDictionary *)dict;+ (instancetype)questionWithDict:(NSDictionary *)dict;/** 返回所有题目数组 */+ (NSArray *)questions;@end
     

 

HMQuestion.m

#import "HMQuestion.h"@implementation HMQuestion// 在成员方法中，如果给self赋值，只能在initXXX方法中进行// 语法约定：// 1> 所有的方法首字母小写// 2> 当单词切换的时候，单词首字母大写（驼峰法）// 3> 类名要大写- (instancetype)initWithDict:(NSDictionary *)dict{    self = [super init];    if (self) {        [self setValuesForKeysWithDictionary:dict];    }    return self;}+ (instancetype)questionWithDict:(NSDictionary *)dict{    return [[self alloc] initWithDict:dict];}+ (NSArray *)questions{    NSArray *array = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"questions.plist" ofType:nil]];        NSMutableArray *arrayM = [NSMutableArray array];    for (NSDictionary *dict in array) {        [arrayM addObject:[self questionWithDict:dict]];    }        return arrayM;}// 对象描述方法，类似于java中的toString()，便于跟踪调试的// 建议：如果是自定义的模型，最好编写description方法，可以方便调试- (NSString *)description{    return [NSString stringWithFormat:@"<%@: %p> {answer: %@, icon: %@, title: %@, options: %@}", self.class, self, self.answer, self.icon, self.title, self.options];}@end

HMViewController.m文件

#import "HMViewController.h"#import "HMQuestion.h"@interface HMViewController ()@property (nonatomic, strong) NSArray *questions;@end@implementation HMViewController//懒加载- (NSArray *)questions{    if (_questions == nil) {        _questions = [HMQuestion questions];    }    return _questions;}- (void)viewDidLoad{    [super viewDidLoad];        NSLog(@"%@", self.questions);//    for (HMQuestion *obj in self.questions) {//        NSLog(@"%@", obj);//    }}/** 调整状态栏颜色 *//** UIStatusBarStyleDefault      黑色状态栏 UIStatusBarStyleLightContent 亮色状态栏 */- (UIStatusBarStyle)preferredStatusBarStyle{    return UIStatusBarStyleLightContent;}@end