页面修改

src/components/mall/goodlist.vue

@@ -58,7 +58,7 @@
         <li>
           <span>
             <em>分类</em>
-            <el-select v-model="showCategoryName" placeholder="请选择" multiple collapse-tags @change="selectChange">
+            <el-select v-model="showCategoryName" placeholder="请选择" multiple clearable collapse-tags @change="selectChange">
               <el-option :value="chooseCategroyArray" style="height: auto">
                 <el-tree :data="CategoryList" show-checkbox node-key="Id" ref="tree" highlight-current
                   :props="defaultProps" @check-change="categoryCheckChange"></el-tree>