更新登录页背景图

src/pages/login/index.vue

@@ -3,7 +3,7 @@
 <div class='layout'>
   <div class="layout-con">
     <!-- <img class="logo" :src="require('@/assets/img/4dage-logo.png')" alt=""> -->
-    <img class="lay-bg" :src="require('@/assets/img/bg.png')" alt="">
+    <img class="lay-bg" :src="require('@/assets/img/bg.jpg')" alt="">
     <div class="middle">
       <div class="middle-con">
         <div class="middle-title">