菜单管理关闭按钮回掉方法绑定问题

src/views/admin/sys-menu/index.vue

@@ -144,7 +144,7 @@
         <el-drawer
           ref="drawer"
           :title="title"
-          :before-close="handleClose"
+          :before-close="cancel"
           :visible.sync="open"
           direction="rtl"
           custom-class="demo-drawer"