创建Model三部曲

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#import <Foundation/Foundation.h>

@interface Car : NSObject

@property (nonatomic, copy)NSString *icon;

@property (nonatomic, copy)NSString *name;

//初始化+便利构造器初始化
- (instancetype)initWithDic:(NSDictionary *)dict;

+ (Car *)carWithDic: (NSDictionary *)dict;

//自定义返回数组方法，此数组即为存放 “Car”这个model的数组，在MVC - V or C种可以用NSArray * arr = 【Car cars】调用, arr即为VC种数据源

+ (NSArray *)cars;

@end

#import "Car.h"

@implementation Car

- (instancetype)initWithDic:(NSDictionary *)dict {
    self = [super init];
    if (self) {
        [self setValuesForKeysWithDictionary:dict];
    }
    return self;
}

+ (Car *)carWithDic:(NSDictionary *)dict {
    return [[self alloc]initWithDic:dict];
}

+ (NSArray *)cars {

   NSArray *cArray = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle]pathForResource:@"****.plist" ofType:nil]];
    NSMutableArray *carArray = [NSMutableArray array];
    for (NSDictionary *dic in cArray) {
        [carArray addObject:[self carWithDic:dic]];
    }

    return carArray;
}

@end

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