iOS 七牛多张图片上传

-(void)uploadImages:(NSArray *)images atIndex:(NSInteger)index token:(NSString *)token uploadManager:(QNUploadManager *)uploadManager keys:(NSMutableArray *)keys{
    UIImage *image = images[index];
    __block NSInteger imageIndex = index;
    NSData *data = UIImageJPEGRepresentation(image, 0.5);
    NSTimeInterval time= [[NSDate new] timeIntervalSince1970];
    NSString *filename = [NSString stringWithFormat:@"%@_%ld_%.f.%@",@"status",686734963504054272,time,@"jpg"];
    [uploadManager putData:data key:filename token:token
                  complete:^(QNResponseInfo *info, NSString *key, NSDictionary *resp) {
                      if (info.isOK) {
                          [keys addObject:key];
                          NSLog(@"idInex %ld,OK",index);
                          imageIndex++;
                          if (imageIndex >= images.count) {
                              NSLog(@"上传完成");
                              for (NSString *imgKey in keys) {
                                  NSLog(@"%@",imgKey);
                              }
                              return ;
                          }
                          [self uploadImages:images atIndex:imageIndex token:token uploadManager:uploadManager keys:keys];
                      }

    } option:nil];
}