fix

 import { ref } from 'vue'
 import axios from '@/utils/axios';
+import { Toast } from 'vant';
 
 export const useDefaultPerf = (bookId) => {
   // 金数据准备数据

@@ -60,6 +60,7 @@ import { ref, reactive } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import _ from 'lodash'
 import axios from '@/utils/axios';
+import { Toast } from 'vant';
 
 const $route = useRoute();
 const $router = useRouter();

@@ -50,6 +50,7 @@ import { useRoute, useRouter, onBeforeRouteLeave } from 'vue-router'
 import axios from '@/utils/axios';
 import _ from 'lodash'
 import { Toast, Dialog } from 'vant';
+
 const $route = useRoute();
 const $router = useRouter();