diff --git a/src/components/common/Header.vue b/src/components/common/Header.vue
index ec81507..c66bb6b 100644
--- a/src/components/common/Header.vue
+++ b/src/components/common/Header.vue
@@ -2,7 +2,8 @@
     <div class="header">
         <!-- 折叠按钮 -->
         <div class="collapse-btn" @click="collapseChage">
-            <i class="el-icon-menu"></i>
+            <i v-if="!collapse" class="el-icon-s-fold"></i>
+            <i v-else class="el-icon-s-unfold"></i>
         </div>
         <div class="logo">后台管理系统</div>
         <div class="header-right">
@@ -15,7 +16,11 @@
                 </div>
                 <!-- 消息中心 -->
                 <div class="btn-bell">
-                    <el-tooltip effect="dark" :content="message?`有${message}条未读消息`:`消息中心`" placement="bottom">
+                    <el-tooltip
+                        effect="dark"
+                        :content="message?`有${message}条未读消息`:`消息中心`"
+                        placement="bottom"
+                    >
                         <router-link to="/tabs">
                             <i class="el-icon-bell"></i>
                         </router-link>
@@ -23,11 +28,14 @@
                     <span class="btn-bell-badge" v-if="message"></span>
                 </div>
                 <!-- 用户头像 -->
-                <div class="user-avator"><img src="../../assets/img/img.jpg"></div>
+                <div class="user-avator">
+                    <img src="../../assets/img/img.jpg" />
+                </div>
                 <!-- 用户名下拉菜单 -->
                 <el-dropdown class="user-name" trigger="click" @command="handleCommand">
                     <span class="el-dropdown-link">
-                        {{username}} <i class="el-icon-caret-bottom"></i>
+                        {{username}}
+                        <i class="el-icon-caret-bottom"></i>
                     </span>
                     <el-dropdown-menu slot="dropdown">
                         <a href="http://blog.gdfengshuo.com/about/" target="_blank">
@@ -36,7 +44,7 @@
                         <a href="https://github.com/lin-xin/vue-manage-system" target="_blank">
                             <el-dropdown-item>项目仓库</el-dropdown-item>
                         </a>
-                        <el-dropdown-item divided  command="loginout">退出登录</el-dropdown-item>
+                        <el-dropdown-item divided command="loginout">退出登录</el-dropdown-item>
                     </el-dropdown-menu>
                 </el-dropdown>
             </div>
@@ -44,142 +52,143 @@
     </div>
 </template>
 <script>
-    import bus from '../common/bus';
-    export default {
-        data() {
-            return {
-                collapse: false,
-                fullscreen: false,
-                name: 'linxin',
-                message: 2
+import bus from '../common/bus';
+export default {
+    data() {
+        return {
+            collapse: false,
+            fullscreen: false,
+            name: 'linxin',
+            message: 2
+        };
+    },
+    computed: {
+        username() {
+            let username = localStorage.getItem('ms_username');
+            return username ? username : this.name;
+        }
+    },
+    methods: {
+        // 用户名下拉菜单选择事件
+        handleCommand(command) {
+            if (command == 'loginout') {
+                localStorage.removeItem('ms_username');
+                this.$router.push('/login');
             }
         },
-        computed:{
-            username(){
-                let username = localStorage.getItem('ms_username');
-                return username ? username : this.name;
-            }
+        // 侧边栏折叠
+        collapseChage() {
+            this.collapse = !this.collapse;
+            bus.$emit('collapse', this.collapse);
         },
-        methods:{
-            // 用户名下拉菜单选择事件
-            handleCommand(command) {
-                if(command == 'loginout'){
-                    localStorage.removeItem('ms_username')
-                    this.$router.push('/login');
+        // 全屏事件
+        handleFullScreen() {
+            let element = document.documentElement;
+            if (this.fullscreen) {
+                if (document.exitFullscreen) {
+                    document.exitFullscreen();
+                } else if (document.webkitCancelFullScreen) {
+                    document.webkitCancelFullScreen();
+                } else if (document.mozCancelFullScreen) {
+                    document.mozCancelFullScreen();
+                } else if (document.msExitFullscreen) {
+                    document.msExitFullscreen();
                 }
-            },
-            // 侧边栏折叠
-            collapseChage(){
-                this.collapse = !this.collapse;
-                bus.$emit('collapse', this.collapse);
-            },
-            // 全屏事件
-            handleFullScreen(){
-                let element = document.documentElement;
-                if (this.fullscreen) {
-                    if (document.exitFullscreen) {
-                        document.exitFullscreen();
-                    } else if (document.webkitCancelFullScreen) {
-                        document.webkitCancelFullScreen();
-                    } else if (document.mozCancelFullScreen) {
-                        document.mozCancelFullScreen();
-                    } else if (document.msExitFullscreen) {
-                        document.msExitFullscreen();
-                    }
-                } else {
-                    if (element.requestFullscreen) {
-                        element.requestFullscreen();
-                    } else if (element.webkitRequestFullScreen) {
-                        element.webkitRequestFullScreen();
-                    } else if (element.mozRequestFullScreen) {
-                        element.mozRequestFullScreen();
-                    } else if (element.msRequestFullscreen) {
-                        // IE11
-                        element.msRequestFullscreen();
-                    }
+            } else {
+                if (element.requestFullscreen) {
+                    element.requestFullscreen();
+                } else if (element.webkitRequestFullScreen) {
+                    element.webkitRequestFullScreen();
+                } else if (element.mozRequestFullScreen) {
+                    element.mozRequestFullScreen();
+                } else if (element.msRequestFullscreen) {
+                    // IE11
+                    element.msRequestFullscreen();
                 }
-                this.fullscreen = !this.fullscreen;
-            }
-        },
-        mounted(){
-            if(document.body.clientWidth < 1500){
-                this.collapseChage();
             }
+            this.fullscreen = !this.fullscreen;
+        }
+    },
+    mounted() {
+        if (document.body.clientWidth < 1500) {
+            this.collapseChage();
         }
     }
+};
 </script>
 <style scoped>
-    .header {
-        position: relative;
-        box-sizing: border-box;
-        width: 100%;
-        height: 70px;
-        font-size: 22px;
-        color: #fff;
-    }
-    .collapse-btn{
-        float: left;
-        padding: 0 21px;
-        cursor: pointer;
-        line-height: 70px;
-    }
-    .header .logo{
-        float: left;
-        width:250px;
-        line-height: 70px;
-    }
-    .header-right{
-        float: right;
-        padding-right: 50px;
-    }
-    .header-user-con{
-        display: flex;
-        height: 70px;
-        align-items: center;
-    }
-    .btn-fullscreen{
-        transform: rotate(45deg);
-        margin-right: 5px;
-        font-size: 24px;
-    }
-    .btn-bell, .btn-fullscreen{
-        position: relative;
-        width: 30px;
-        height: 30px;
-        text-align: center;
-        border-radius: 15px;
-        cursor: pointer;
-    }
-    .btn-bell-badge{
-        position: absolute;
-        right: 0;
-        top: -2px;
-        width: 8px;
-        height: 8px;
-        border-radius: 4px;
-        background: #f56c6c;
-        color: #fff;
-    }
-    .btn-bell .el-icon-bell{
-        color: #fff;
-    }
-    .user-name{
-        margin-left: 10px;
-    }
-    .user-avator{
-        margin-left: 20px;
-    }
-    .user-avator img{
-        display: block;
-        width:40px;
-        height:40px;
-        border-radius: 50%;
-    }
-    .el-dropdown-link{
-        color: #fff;
-        cursor: pointer;
-    }
-    .el-dropdown-menu__item{
-        text-align: center;
-    }
+.header {
+    position: relative;
+    box-sizing: border-box;
+    width: 100%;
+    height: 70px;
+    font-size: 22px;
+    color: #fff;
+}
+.collapse-btn {
+    float: left;
+    padding: 0 21px;
+    cursor: pointer;
+    line-height: 70px;
+}
+.header .logo {
+    float: left;
+    width: 250px;
+    line-height: 70px;
+}
+.header-right {
+    float: right;
+    padding-right: 50px;
+}
+.header-user-con {
+    display: flex;
+    height: 70px;
+    align-items: center;
+}
+.btn-fullscreen {
+    transform: rotate(45deg);
+    margin-right: 5px;
+    font-size: 24px;
+}
+.btn-bell,
+.btn-fullscreen {
+    position: relative;
+    width: 30px;
+    height: 30px;
+    text-align: center;
+    border-radius: 15px;
+    cursor: pointer;
+}
+.btn-bell-badge {
+    position: absolute;
+    right: 0;
+    top: -2px;
+    width: 8px;
+    height: 8px;
+    border-radius: 4px;
+    background: #f56c6c;
+    color: #fff;
+}
+.btn-bell .el-icon-bell {
+    color: #fff;
+}
+.user-name {
+    margin-left: 10px;
+}
+.user-avator {
+    margin-left: 20px;
+}
+.user-avator img {
+    display: block;
+    width: 40px;
+    height: 40px;
+    border-radius: 50%;
+}
+.el-dropdown-link {
+    color: #fff;
+    cursor: pointer;
+}
+.el-dropdown-menu__item {
+    text-align: center;
+}
 </style>