#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {

    @autoreleasepool {

//        NSDictionary *dic=[NSDictionary dictionaryWithObject:@"lnj" forKey:@"name"];

//        NSString *name=[dic objectForKey:@"name"];

//        NSLog(@"name=%@",name);

//        NSDictionary *dic=[NSDictionary dictionaryWithObjects:@[@"lnj",@"30"] forKeys:@[@"name",@"age"]];

//        NSLog(@"%@,%@",[dic objectForKey:@"name"],[dic objectForKey:@"age"]);

//        NSDictionary *dic =@{@"name":@"lnj"};

//        NSLog(@"%@",dic[@"name"]);

//        NSDictionary *dic=@{@"name":@"lnj",@"age":@"30",@"height":@"1.75"};

//        NSLog(@"%@,%@,%@",dic[@"name"],dic[@"age"],dic[@"height"]);

        //字典的遍历

//        NSLog(@"count=%lu",[dic count]);

//        for (int i=0; i<dic.count; i++) {

//            NSArray *keys=[dic allKeys];

//            NSString *key=keys[i];

//            NSString *value=dic[key];

//            NSLog(@"%@,%@",key,value);

//

//        }

//        for (NSObject *key in dic) {

////            NSLog(@"%@",key);

//            NSString *value=dic[key];

//            NSLog(@"%@,%@",key,value);

//        }

        //字典和数组不同，字典中保存的数据是无序的

//        [dic enumerateKeysAndObjectsUsingBlock:^(id  key,id  value,BOOL *stop) {

//                        NSLog(@"%@,%@",key,value);

//

//        }];

        //3.字典文件读写

        NSDictionary *dic=@{@"name":@"lnj",@"age":@"",@"height":@"1.75"};

        [dic writeToFile:@"/Users/qianlilin/Desktop/info.plist" atomically:YES];

        NSDictionary *newDict=[NSDictionary dictionaryWithContentsOfFile:@"/Users/qianlilin/Desktop/info3.plist"];

        NSLog(@"%@",newDict);

//        NSArray *arr=@[@10,@20,@5];

//        [arr writeToFile:@"/Users/qianlilin/Desktop/info1.plist" atomically:YES];

//        NSArray *newArray=[NSArray arrayWithContentsOfFile:@"/Users/qianlilin/Desktop/info2.plist"];

//        NSLog(@"%@",newArray);

    }

    return ;

}

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {

    @autoreleasepool {

//        NSMutableArray *arrM=[NSMutableArray arrayWithObject:@"qll"];

        NSMutableArray *arrM=[NSMutableArray array];

        [arrM addObject:@"JJJ"];

        NSLog(@"%@",arrM);

        [arrM addObjectsFromArray:@[@"lmj",@"lnj"]];

        NSLog(@"%@",arrM);

//        [arrM addObject:@[@"lmj",@"lnj"]];

//        NSLog(@"%@",arrM);

        [arrM insertObject:@"xcp" atIndex:];

        NSLog(@"%@",arrM);

        NSRange range=NSMakeRange(, );

        NSIndexSet *set=[NSIndexSet indexSetWithIndexesInRange:range];

        [arrM insertObjects:@[@"",@""] atIndexes:set];

        NSLog(@"%@",arrM);

        [arrM removeObject:@""];

        NSLog(@"%@",arrM);

        [arrM removeLastObject];

        NSLog(@"%@",arrM);

        [arrM removeObjectAtIndex:];

        NSLog(@"%@",arrM);

        [arrM replaceObjectAtIndex: withObject:@"M"];

        NSLog(@"%@",arrM);

        NSLog(@"%@",[arrM objectAtIndex:]);

        NSLog(@"%@",arrM[]);

        arrM[]=@"";

        NSLog(@"%@",arrM[]);

    }

    return ;

}

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {

    @autoreleasepool {

//        NSDictionary *dii=@{@"a":@"*"};

//        NSDictionary *dii1=@{@"a":@"长城"};

//        NSArray *c=@[dii,dii1];

//        NSDictionary *dic=@{@"city":@"北京市",@"Citys":c};

//        NSArray *arr=@[dic];

//        [arr writeToFile:@"/Users/qianlilin/Desktop/info4.plist" atomically:YES];

        NSString *path=@"/Users/qianlilin/Desktop/city.plist";

        NSArray  *arr=[NSArray arrayWithContentsOfFile:path];

    /*    for (NSDictionary *a in arr) {

//            NSLog(@"%@",a);

            NSArray *CI=[a objectForKey:@"Citys"];

            NSLog(@"%@",[a objectForKey:@"city"]);

            for (NSDictionary *cc in CI) {

//                NSLog(@"%@",cc);

                NSLog(@"%@",[cc objectForKey:@"a"]);

            }

        }*/

        for (NSDictionary *china in arr) {

            //        NSLog(@"%@",a);

            NSArray *CI=[china objectForKey:@"Cities"];

            NSLog(@"%@",china[@"State"]);

            // NSLog(@"%@",cc);

            for (NSDictionary *cc in CI) {

                NSLog(@"%@",[cc objectForKey:@"city"]);

            }

        }

    }

    return ;

}