diff --git a/app/src/main/java/io/legado/app/help/BookHelp.kt b/app/src/main/java/io/legado/app/help/BookHelp.kt
index c117c61ed..ff5ee0b7d 100644
--- a/app/src/main/java/io/legado/app/help/BookHelp.kt
+++ b/app/src/main/java/io/legado/app/help/BookHelp.kt
@@ -108,6 +108,9 @@ object BookHelp {
             ?: ""
     }
 
+    /**
+     * 找到相似度最高的章节
+     */
     fun getDurChapterIndexByChapterTitle(
         title: String?,
         index: Int,