啊

src/views/Shelf/index.ux

@@ -3,7 +3,7 @@
 <template>
   <div class="shelfs">
     <div class="shelf_title"><text>书架</text></div>
-    <div class="book_detail">
+    <div if="{{Object.keys(firstBook).length > 0}}" class="book_detail">
       <div class="shelf-first__content">
         <image src="{{firstBook.cover_url}}"></image>
         <div class="book-info__multi">
@@ -183,13 +183,18 @@ export default {
         delete m.cover
         delete m.cid
       })
+    
       this.booksize = r.length
       // 获取书架的第一本书
-      r.forEach((element,index) => {
-        index === 0 ? this.firstBook = element : this.firstBook;
-        return;
-      });
-      console.log("this.firstBook:",this.firstBook);
+      // r.forEach((element,index) => {
+      //   index === 0 ? this.firstBook = element : this.firstBook;
+      //   return;
+      // });
+      if(this.booksize > 0){
+        this.firstBook = r[0];
+      }
+
+      // console.log("this.firstBook:",this.firstBook,"this.firstBook.length",Object.keys(this.firstBook).length);
       this.mockList = r
       this.isinit = true
       console.log(this.mockList);