替换title

 <template>
   <div>
-    <LayoutApp :show-back="true">
+    <LayoutApp :show-back="true" :title="title">
       <div class="filter">
         <div class="filter-tab">
           <div class="tab-item" :class="selectedType === 2 && 'selected-tab'" @click="pressType(2)">人气</div>
@@ -62,7 +62,7 @@ export default {
       arrowImage: '',
       listType: 1,
       type: 6,
-
+      title: '',
       productList: {
         showErrorPage: false,
         isFetching: false,
@@ -96,6 +96,12 @@ export default {
     this.changeArrow();
     let params = this.$route.query;
 
+    if (params.title) {
+      this.title = params.title;
+      delete params.title;
+    } else {
+      this.title = '商品列表';
+    }
     if (Object.keys(params).length && params.listType) {
       this.listType = params.listType;
       delete params.listType;