//路径

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+ (NSString *)cretableName

{

  NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

  NSString *documentPath = [path objectAtIndex:0];

   //指定新建文件夹路径

  NSString *p_w_picpathDocPath = [documentPath stringByAppendingPathComponent:[NSString stringWithFormat:@"setPlace.plist"]];

  return p_w_picpathDocPath;

}

//添加

+ (void)addPlaceWrite:(NSDictionary *)dict anCity:(NSString *)cityName

{

 NSString *filePath = [self cretableName];

  NSMutableDictionary *dic = [NSMutableDictionary dictionaryWithContentsOfFile:filePath];

  if(nil == dic)

  {

    dic = [NSMutableDictionary dictionaryWithCapacity:0];

  }

  NSMutableArray *dataArry = [dic valueForKey:cityName];

  if(nil == dataArry)

  {

    dataArry = [NSMutableArray arrayWithCapacity:0];

  }

  if (0 == dataArry.count)

  {

    [dataArry addObject:dict];

  }

  else

  {

    [dataArry addObject:dict];

  }

  [dic setValue:dataArry forKey:cityName];

  [dic writeToFile:filePath atomically:YES];

}

//所有

+ (NSArray *)allPlaceData:(NSString *)cityName

{

  NSString *filePath = [self cretableName];

  NSDictionary *dict = [NSDictionary dictionaryWithContentsOfFile:filePath];

  NSArray *aray = dict[cityName];

  return aray;

}

//删除

+ (void)deletePlaceData:(NSInteger)index anCity:(NSString *)cityName

{

  NSString *filePath = [self cretableName];

  NSDictionary *dict = [NSDictionary dictionaryWithContentsOfFile:filePath];

  NSMutableArray *arry = dict[cityName];

  [arry removeObjectAtIndex:index];

  [dict setValue:arry forKey:cityName];

  [dict writeToFile:filePath atomically:YES];

}

//修改

+ (void)modifyPlaceData:(NSDictionary *)dic anPlace:(NSInteger)index anCity:(NSString *)cityName

{

  NSString *filePath = [self cretableName];

  NSDictionary *dict = [NSDictionary dictionaryWithContentsOfFile:filePath];

  NSMutableArray *arry = dict[cityName];

   [arry removeObjectAtIndex:index];

  [arry insertObject:dic atIndex:index];

  [dict setValue:arry forKey:cityName];

  [dict writeToFile:filePath atomically:YES];

}

//查询

+ (BOOL)allCity:(NSString *)anCity

{

  BOOL isBlean = NO;

  NSString *filePath = [self cretableCityName];

  NSArray *arry = [NSArray arrayWithContentsOfFile:filePath];

  for(NSString *city in arry)

  {

   if([anCity isEqualToString:city])

   {

     isBlean = YES;

     break;

   }

  }

  return isBlean;

}

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标题名称：iOSplist文件的增删，改查-创新互联
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