修改登录页文案

client/src/pages/login/index.vue

@@ -5,7 +5,8 @@
       <div class="left">
         <img src="../../assets/images/login-tit1.png" alt="" class="txt1">
         <img src="../../assets/images/login-tit2.png" alt="" class="txt2">
-        <img src="../../assets/images/login-tit3.png" alt="" class="txt3">
+        <img v-if="imgUrl==='pc'" src="../../assets/images/login-tit3-pc.png" alt="" class="txt3">
+        <img v-if="imgUrl==='mobile'" src="../../assets/images/login-tit3.png" alt="" class="txt3">
       </div>
       <div class="login-modules">
         <normal-login>
@@ -82,7 +83,8 @@ export default {
   data () {
     return {
       loginUrl: {
-        url: ''
+        url: '',
+        imgUrl: 'pc'
       }
     }
   },
@@ -92,11 +94,13 @@ export default {
       meta: []
     }
   },
-  mounted () {
+  created () {
     if (/Android|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent)) {
       this.loginUrl.url = '/mobile/list'
+      this.imgUrl = 'mobile'
     } else {
       this.loginUrl.url = '/app/tips/learning-tips'
+      this.imgUrl = 'pc'
     }
   },
   methods: {