下限37

app/Modules/Book/Services/BookService.php

@@ -174,7 +174,7 @@ class BookService
         //固定价格
         if(strtolower($calculate_price_type) == 'const'){
             $price = (int)$book_info->unit_price;
-            return $price;
+            return $price < 37 ? 37 : $price;
         }
         //千字价格
         $channel_fee = self::getChapterPrice($distribution_channel_id);