plist保存不同的数据

FDrugsPath =[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0] stringByAppendingPathComponent:@"favoriteDrug.plist"]

    

    NSMutableDictionary* resultDict = [NSMutableDictionary dictionaryWithContentsOfFile:FDrugsPath];

    if (!resultDict) {

        resultDict = [NSMutableDictionary dictionary];

    }

    //self.drugDetail.name是从第一个页面传过来的药品名字

    [resultDict setObject:self.drugDetail.name forKey:@(resultDict.allKeys.count+1).stringValue];

    NSLog(@"resultDict -- %@",resultDict);

    [resultDict writeToFile:FDrugsPath atomically:YES];