iOS网络: 把Array和Dictionaries序列化成JSON对象

NSMutableDictionary *dictionary = [NSMutableDictionary dictionaryWithDictionary:@{
    @"FirstName":@"Anthony",
    @"Last Name" : @"Robbins",
    @"Age" : @51
    }];
    NSArray *arrayOfAnthonysChildren = @[
                                         @"Anthony‘s Son 1",
                                         @"Anthony‘s Daughter 1",
                                         @"Anthony‘s Son 2",
                                         @"Anthony‘s Son 3",
                                         @"Anthony‘s Daughter 2"
                                         ];
    [dictionary setValue:arrayOfAnthonysChildren forKey:@"children"];