objective-c可变字典

 1 #pragma mark *****************************字典********************************

 2 //        字典：通过key来取值的 key值必须是成对出现的，key不能为空（nil）

 3         NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:@"object",@"key",@"object2",@"key2", nil];

 4         NSDictionary *dic1 = @{@"key1":@"object1",@"key2":@"object2",@"key3":@"object3",@"key4":@"object4"};

 5         NSLog(@"%@",[dic objectForKey:@"key"]);

 6         NSLog(@"%@",dic1[@"key2"]);

 7 //        dic.allKeys可以取出dic中所有的key值;

 8         NSLog(@"%@",dic1.allKeys);

 9         for(NSString *key in dic1.allKeys){

             NSLog(@"%@",[dic1 objectForKey: key]);

         }

 #pragma mark *****************************可变字典********************************

 //        可变字典：可以删除、替换（添加）

 //        NSMutableDictionary 可变字典的类名

         NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];//初始化了一个空字典

         [dictionary setObject:@"iphone " forKey:@"phone"];

         

         [dictionary setObject:@"htc" forKey:@"phone"];

         NSLog(@"%@",dictionary);

         [dictionary removeObjectForKey:@"phone"];

         NSLog(@"%@",dictionary);

 //        不可以这种方式初始化NSMutableDictionary *dictionary =@{@"key1":@"object1",@"key2":@"object2"};

 #pragma mark **************************字典之间的嵌套******************************

 //        不可变数组

         NSDictionary *date = @{@"id":@"",@"nick":@"小花",@"header":@"www.baidu.headeerImage.png",@"balance":@"",};

         NSDictionary *dictionary1 = @{@"code":@"",@"data":date};

         NSLog(@"%@",dictionary1);

 //      可变数组

         NSMutableDictionary *dict = [NSMutableDictionary dictionary];

         [dict setObject:@() forKey:@"code"];

         [dict setObject:date forKey:@"data"];

         

         NSLog(@"%@",dict);

         NSMutableDictionary *dict1 = [dict[@"data"] mutableCopy];

         [dict1 setObject:@"www.baidu.taobao.Image.png" forKey:@"header"];

         NSLog(@"%@",dict1);

 //        输出呢称

         NSLog(@"呢称是：%@",dictionary1[@"data"][@"nick"]);

         

 //        判断code值是不是200，如果code的返回值是200 输出data字典里面的所有内容，如果不是200输出返回数据失败

         switch ([dict[@"code"] integerValue]) {

             case :{

                 NSLog(@"登陆成功");

                 NSDictionary *userInfo = dict[@"data"];

                 NSLog(@"呢称是%@",userInfo[@"nick"]);

             }

                 break;

             case :

                 NSLog(@"返回数据失败");

                 break;

             case :

                 NSLog(@"用户失效");

                 break;

             default:

                 NSLog(@"未知错误");

                 break;

         }

 //        

       

         

         

         NSMutableDictionary *liuDic0 = [NSMutableDictionary dictionary];

         [liuDic0 setObject:@() forKey:@"code"];

         NSDictionary *liuData0 = @{@"id":@"LiYongJun250",@"name":@"LiYongJun250",@"phone":@"",@"balance":@"1000.10",@"msgnum":@""};

         [liuDic0 setValue:liuData0 forKey:@"data"];

         

         NSMutableDictionary *liuDic1 = [NSMutableDictionary dictionary];

         [liuDic1 setObject:@() forKey:@"code"];

         

         NSDictionary *liuData1 = @{@"version":@"1.0.1",@"desc":@"LiYongJun250",@"url":@"www.baidu.LiYongJun250.com"};

         [liuDic1 setObject:liuData1 forKey:@"data"];

         NSInteger phoneNum = [liuDic0[@"data"][@"phone"] integerValue];

         NSLog(@"手机号是：%ld",phoneNum);

         NSLog(@"下载地址是：%@",liuDic1[@"data"][@"url"]);

         

         

 #pragma mark **************************字典与数组之间的嵌套******************************

         

         NSArray *arr = @[liuData0,@(),@(),@()];

         NSLog(@"%@",arr);

         NSDictionary *dicti = arr[];

         NSLog(@"%@",dicti);

         
执行结果：
2015-06-24 19:45:28.258 OC-NO-4-可变数组[806:83680] object
2015-06-24 19:45:28.259 OC-NO-4-可变数组[806:83680] object2
2015-06-24 19:45:28.260 OC-NO-4-可变数组[806:83680] (
    key3,
    key1,
    key4,
    key2
)
2015-06-24 19:45:28.260 OC-NO-4-可变数组[806:83680] object3
2015-06-24 19:45:28.260 OC-NO-4-可变数组[806:83680] object1
2015-06-24 19:45:28.260 OC-NO-4-可变数组[806:83680] object4
2015-06-24 19:45:28.260 OC-NO-4-可变数组[806:83680] object2
2015-06-24 19:45:28.260 OC-NO-4-可变数组[806:83680] {
    phone = htc;
}
2015-06-24 19:45:28.260 OC-NO-4-可变数组[806:83680] {
}
2015-06-24 19:45:28.261 OC-NO-4-可变数组[806:83680] {
    code = 200;
    data =     {
        balance = 100;
        header = "www.baidu.headeerImage.png";
        id = 110119;
        nick = "\U5c0f\U82b1";
    };
}
2015-06-24 19:45:28.261 OC-NO-4-可变数组[806:83680] {
    code = 200;
    data =     {
        balance = 100;
        header = "www.baidu.headeerImage.png";
        id = 110119;
        nick = "\U5c0f\U82b1";
    };
}
2015-06-24 19:45:28.261 OC-NO-4-可变数组[806:83680] {
    balance = 100;
    header = "www.baidu.taobao.Image.png";
    id = 110119;
    nick = "\U5c0f\U82b1";
}
2015-06-24 19:45:28.299 OC-NO-4-可变数组[806:83680] 呢称是：小花
2015-06-24 19:45:28.299 OC-NO-4-可变数组[806:83680] 登陆成功
2015-06-24 19:45:28.300 OC-NO-4-可变数组[806:83680] 呢称是小花
2015-06-24 19:45:28.300 OC-NO-4-可变数组[806:83680] 手机号是：15761672937
2015-06-24 19:45:28.300 OC-NO-4-可变数组[806:83680] 下载地址是：www.baidu.LiYongJun250.com
2015-06-24 19:45:28.301 OC-NO-4-可变数组[806:83680] (
        {
        balance = "1000.10";
        id = LiYongJun250;
        msgnum = 20;
        name = LiYongJun250;
        phone = 15761672937;
    },
    111,
    2222,
    33333
)
2015-06-24 19:45:28.301 OC-NO-4-可变数组[806:83680] {
    balance = "1000.10";
    id = LiYongJun250;
    msgnum = 20;
    name = LiYongJun250;
    phone = 15761672937;
}