bug

src/views/modules/application/news-add-or-update.vue

@@ -290,6 +290,7 @@ export default {
     },
     // 上传之前校验
     beforeAvatarUpload (file) {
+      this.imgUrl = new FormData()
       const isJPG = file.type === 'image/jpeg'
       const isPNG = file.type === 'image/png'
       const isLt2M = file.size / 1024 / 1024 < 2