feat: 增加无图片的提示

src/views/history/index.vue

@@ -84,7 +84,7 @@ import { useRouter } from 'vue-router'
 import TopNavBar from '../components/TopNavBar.vue'
 // @ts-ignore
 import { generatorPhotoTaskList } from '@api'
-import { closeToast, showLoadingToast } from 'vant'
+import { closeToast, showLoadingToast, showToast } from 'vant'
 import 'vant/lib/toast/style'
 
 interface TaskItem {
@@ -105,6 +105,10 @@ const onBack = () => {
 
 const lookPicture = (item: TaskItem) => {
   console.log('查看图片')
+  if (!item.cover) {
+    showToast('没有图片可查看')
+    return
+  }
   const encoded = encodeURIComponent(JSON.stringify(item))
   router.push({ path: '/prepicture', query: { data: encoded } })
 }