diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index c7e9e92..ea1e37e 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -481,12 +481,12 @@ namespace formula_manage
         {          
             if (e.Key == Key.Enter)
             {
-                UserClass.PressKey.PressKeys(Keys.Right, false);
-                UserClass.PressKey.PressKeys(Keys.Right, true);
-                UserClass.PressKey.PressKeys(Keys.Up, false);
-                UserClass.PressKey.PressKeys(Keys.Up, true);
-                UserClass.PressKey.PressKeys(Keys.Tab, false);
-                UserClass.PressKey.PressKeys(Keys.Tab, true);
+                PressKey.PressKeys(Keys.Right, false);
+                PressKey.PressKeys(Keys.Right, true);
+                PressKey.PressKeys(Keys.Up, false);
+                PressKey.PressKeys(Keys.Up, true);
+                PressKey.PressKeys(Keys.Tab, false);
+                PressKey.PressKeys(Keys.Tab, true);
 
                 System.Windows.Controls.ComboBox curComboBox = sender as System.Windows.Controls.ComboBox;
                 curComboBox.SelectedIndex = 1;
@@ -501,14 +501,15 @@ namespace formula_manage
         {
             if (e.Key == Key.Enter)
             {
-                UserClass.PressKey.PressKeys(Keys.Left, false);
-                UserClass.PressKey.PressKeys(Keys.Left, true);
-                UserClass.PressKey.PressKeys(Keys.Tab, false);
-                UserClass.PressKey.PressKeys(Keys.Tab, true);
+                PressKey.PressKeys(Keys.Left, false);
+                PressKey.PressKeys(Keys.Left, true);
+                PressKey.PressKeys(Keys.Tab, false);
+                PressKey.PressKeys(Keys.Tab, true);
 
             
             }
 
+
         }
 
         
diff --git a/UserClass/DataGridHelper.cs b/UserClass/DataGridHelper.cs
index 77d6a7e..8a33454 100644
--- a/UserClass/DataGridHelper.cs
+++ b/UserClass/DataGridHelper.cs
@@ -8,6 +8,10 @@ using System.Windows;
 
 namespace formula_manage.UserClass
 {
+    /// <summary>
+    /// 实时更新datagrid
+    /// 调用示例：DataGridHelper.SetRealTimeCommit(Grid, true);  Grid为对象控件名
+    /// </summary>
     public static class DataGridHelper
     {
         public static void SetRealTimeCommit(DataGrid dataGrid, bool isRealTime)