意见反馈优化

src/pages/my/feedback.vue

@@ -21,6 +21,10 @@ export default {
     [Toast.name]: Toast
   },
   mounted() {
+    const resizeHeight = document.body.clientHeight
+    window.addEventListener('resize', () => {
+      document.body.clientHeight === resizeHeight ? this.showBtn = true : this.showBtn = false
+    })
   },
   data() {
     return {