NSDictionary

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//字典对象
        NSDictionary *dic1 = [NSDictionarydictionaryWithObjectsAndKeys:@1,@"1",@2,@"2",nil];

        NSDictionary *dic2 = [NSDictionarydictionaryWithObject:@1forKey:@"1"];

        NSDictionary *dic3 =@{@"1":@1,@"2":@2};

        NSArray *objs =@[@1,@2];
        NSArray *keys =@[@"1",@"2"];
        NSDictionary *dic4 = [NSDictionarydictionaryWithObjects:objsforKeys:keys];


        //字典对象的使用
        id obj = [dic1objectForKey:@"2"];
        NSLog(@"%@",obj);

        for (id keyin dic4) {
            id obj = [dic1objectForKey:key];
            NSLog(@"%@",obj);
        }

        NSDictionary *count =@{@"name":@"jacky",
                                @"age":@25,
                                @"tel":@"13141274448",
                                @"e-mail":@"chris.com"
                                };
        NSDictionary *count1 =@{@"name":@"tom",
                                @"age":@23,
                                @"tel":@"1314127448",
                                @"e-mail":@"1016835032.com"
                                };

        NSMutableArray *arr = [[NSMutableArrayalloc]init];
        [arr addObject:count];
        [arr addObject:count1];
        NSLog(@"%@",arr);


    }
    return0;

}

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