修复tab切换数据不重新刷新bug

src/pages/order/index.vue

@@ -12,7 +12,7 @@
           @input="fetchOrderList"
         />
       </div>
-      <van-tabs v-model="active" @change="fetchOrderList">
+      <van-tabs v-model="active" @change="handleTabChange">
         <van-tab title="全部" name=""></van-tab>
         <van-tab title="待付款" name="1"></van-tab>
         <van-tab title="待发货" name="2"></van-tab>
@@ -139,6 +139,14 @@ export default {
     // this.fetchOrderList()
   },
   methods: {
+    handleTabChange() {
+      this.list = []
+      this.page = '0'
+      this.loading = false
+      this.finished = false
+      this.refreshing = false
+      this.fetchOrderList()
+    },
     handlePay(item) {
       const params = {
         shop_id: item.shop_id,