導航欄navHeader

<el-row class="tac">
      <el-col :span="12">
        <h5>媽媽錢包</h5>
        <el-menu
          :default-active="$route.path"
          class="el-menu-vertical-demo"
          router
        >
            <el-menu-item index="/userList" >
              <i class="el-icon-menu"></i>
              <span slot="title">用戶信息</span>
            </el-menu-item>
            <el-menu-item index="/changeAccountManager" >
              <i class="el-icon-menu"></i>
              <span slot="title">批量變更客戶經理</span>
            </el-menu-item>
            <el-menu-item index="/breatheData" >
              <i class="el-icon-menu"></i>
              <span slot="title">呼出數據</span>
            </el-menu-item>
        </el-menu>
      </el-col>
    </el-row>

注意的地方：
:default-active="$route.path" index="/userList" 點擊導航欄跳轉路由 記得加上router