加个背景

src/App.vue

@@ -100,6 +100,8 @@ export default {
 <style lang="less">
 #app {
   height: 100vh;
+  background: url('./assets/imgs/weChartBackImage.jpg') no-repeat;
+  background-size: cover;
   button{
     background-color: #005395;
     margin-bottom: 0.2rem;