1. 生成plist文件，以下代码生成的test.plist在imac硬盘的根目录下。

NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
  
  NSArray *A = [[NSArray alloc] initWithObjects:@"about", @"above", @"abuse", @"air", @"ant", nil];
  NSArray *B = [[NSArray alloc] initWithObjects:@"baby", @"bottle", @"both", @"buy", @"bike", nil];
  NSArray *C = [[NSArray alloc] initWithObjects:@"cake", @"can", @"car", @"cancel", @"calm", nil];
  
  [dict setObject:A forKey:@"A"];
  [dict setObject:B forKey:@"B"];
  [dict setObject:C forKey:@"C"];
  
  // 写入文件
  [dict writeToFile:@"test.plist" atomically:YES];
  [dict release];

 2. 读取plist文件

NSString *path = [[NSBundle mainBundle] pathForResource:@"test" ofType:@"plist"];
  NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfURL:(NSURL *) path];