预托书-增加查询时状态

src/views/pre-book/preBookList.vue

@@ -308,7 +308,9 @@ export default {
     getPreBookData() {
       this.$nextTick(() => {
         // this.queryParam.pageSize = 50
+        this.loading = true
         preBookList(this.queryParam).then(res => {
+          this.loading = false
           if (res.success) {
             this.preBookListData = res.result.records;
             this.pagination = {