plist文件操作

//向草稿箱中写如数据- (void)writeToSendedList:(NSString *)message{    //沙盒中的目录    NSArray *storeFilePath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);    NSString *doucumentsDirectiory = [storeFilePath objectAtIndex:0];    NSLog(@"doucumentsDirectiory:%@",doucumentsDirectiory);    NSString *plistPath =[doucumentsDirectiory stringByAppendingPathComponent:@"MessageList.plist"];    if( [[NSFileManager defaultManager] fileExistsAtPath:[doucumentsDirectiory stringByAppendingPathComponent:@"MessageList.plist"]]==NO ) {        // ============================== 写入plist初始化数据 ===========================        NSMutableDictionary *messageList = [[NSMutableDictionary alloc] init];                        NSMutableDictionary *sendedList = [[NSMutableDictionary alloc] init];        NSMutableArray *hztest01Sended = [[NSMutableArray alloc] initWithObjects:@"123",@"12222",@"fox", nil];        [sendedList  setObject:hztest01Sended forKey:@"hztest01"];                        NSMutableDictionary *draftsList = [[NSMutableDictionary alloc] init];        NSMutableArray *hztest01Drafts = [[NSMutableArray alloc] initWithObjects:@"123",@"12222",@"fox", nil];        [draftsList  setObject:hztest01Drafts forKey:@"hztest01"];                        [messageList setObject:sendedList forKey:@"DraftsList"];        [messageList  writeToFile:plistPath atomically:YES];    }                        //非沙盒中的目录    //NSString *plistPath = [[NSBundle mainBundle] pathForResource:@"SendedList"ofType:@"plist"];        NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] initWithContentsOfFile:plistPath];     NSMutableDictionary *mydictionary = [[NSMutableDictionary alloc] initWithDictionary:[dictionary objectForKey:@"SendedList"]];    NSMutableArray *mysendedList = [[NSMutableArray alloc] initWithArray:[mydictionary objectForKey:@"hztest01"]];    NSLog(@"hztest01的发送箱：%@",mysendedList);     [mysendedList addObject:message];            [mydictionary removeObjectForKey:@"hztest01"];    [mydictionary setObject:mysendedList forKey:@"hztest01"];    [dictionary setObject:mydictionary forKey:@"SendedList"];    [dictionary writeToFile:plistPath atomically:YES];            [mysendedList release];    [mydictionary release];    [dictionary release];}