优化

app/src/main/java/io/legado/app/help/book/BookHelp.kt

@@ -120,7 +120,7 @@ object BookHelp {
         val awaitList = arrayListOf<Deferred<Unit>>()
         content.split("\n").forEach {
             val matcher = AppPattern.imgPattern.matcher(it)
-            if (matcher.find()) {
+            while (matcher.find()) {
                 matcher.group(1)?.let { src ->
                     val mSrc = NetworkUtils.getAbsoluteURL(bookChapter.url, src)
                     awaitList.add(async {
@@ -158,7 +158,8 @@ object BookHelp {
                 ).writeBytes(it)
             }
         } catch (e: Exception) {
-            AppLog.putDebug("${src}下载错误", e)
+            e.printStackTrace()
+            AppLog.put("${src}下载错误", e)
         } finally {
             downloadImages.remove(src)
         }

app/src/main/java/io/legado/app/model/CacheBook.kt

@@ -248,6 +248,12 @@ object CacheBook {
                 waitDownloadSet.remove(chapterIndex)
                 return
             }
+            if (chapter.isVolume) {
+                /** 修正下载计数 */
+                postEvent(EventBus.SAVE_CONTENT, Pair(book, chapter))
+                waitDownloadSet.remove(chapterIndex)
+                return
+            }
             if (BookHelp.hasImageContent(book, chapter)) {
                 waitDownloadSet.remove(chapterIndex)
                 return

app/src/main/java/io/legado/app/ui/book/cache/CacheViewModel.kt

@@ -505,7 +505,12 @@ class CacheViewModel(application: Application) : BaseViewModel(application) {
             upAdapterLiveData.postValue(book.bookUrl)
             exportProgress[book.bookUrl] = index
             BookHelp.getContent(book, chapter).let { content ->
-                var content1 = fixPic(epubBook, book, content ?: "null", chapter)
+                var content1 = fixPic(
+                    epubBook,
+                    book,
+                    content ?: if (chapter.isVolume) "" else "null",
+                    chapter
+                )
                 content1 = contentProcessor
                     .getContent(
                         book,