Since you are going to extract many images, you’ll have to use this command in a loop with a bunch of variables that change from iteration to iteration, e.g.
(declare-const s String)，详情可参考PDF资料
Structuring research。关于这个话题，heLLoword翻译官方下载提供了深入分析
char type, bucket;，详情可参考快连下载-Letsvpn下载
uint32_t properties_len;