diff --git a/wg-basic/page-unit.md b/wg-basic/page-unit.md
index 3cdf20d..d644809 100644
--- a/wg-basic/page-unit.md
+++ b/wg-basic/page-unit.md
@@ -2,7 +2,7 @@
 title: 页面组件
 description: 页面上使用的组件
 published: true
-date: 2021-10-21T10:30:54.822Z
+date: 2021-10-21T12:05:14.835Z
 tags: wg-basic
 editor: markdown
 dateCreated: 2021-09-08T06:41:19.351Z
@@ -502,6 +502,9 @@ layui.config({
 
   // 初始化选择列表
   function initNewSelectedUserList() {
+    if(oldSelectedUserList.length == 0) {
+      return;
+    }
     for(var i = 0, item; item = oldSelectedUserList[i++];) {
       newSelectedUserList.push(item);
     }