diff --git a/EX/ExProgram.xaml b/EX/ExProgram.xaml
index 8075820..0cfde24 100644
--- a/EX/ExProgram.xaml
+++ b/EX/ExProgram.xaml
@@ -5,12 +5,12 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:formula_manage.EX"
         mc:Ignorable="d"
-        Title="ExProgram" Height="450" Width="800">
+        Title="ExProgram" Height="450" Width="800" Background="#FFE0E0E0">
     <Grid>
 
 
 
-        <RichTextBox Margin="0,300,0,0" IsReadOnly="True">
+        <RichTextBox x:Name="textLog" Margin="0,300,0,0" IsReadOnly="True" VerticalScrollBarVisibility="Visible" Background="White">
             <FlowDocument>
                 <Paragraph>
                     <Run Text="TEXTLOG"/>
diff --git a/EX/ExProgram.xaml.cs b/EX/ExProgram.xaml.cs
index 4696f45..e7e1fcb 100644
--- a/EX/ExProgram.xaml.cs
+++ b/EX/ExProgram.xaml.cs
@@ -1,4 +1,5 @@
-using System;
+using formula_manage.UserClass;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -22,6 +23,7 @@ namespace formula_manage.EX
         public ExProgram()
         {
             InitializeComponent();
+            Log.SetTextControl(textLog);
         }
     }
 }
diff --git a/UserClass/Log.cs b/UserClass/Log.cs
new file mode 100644
index 0000000..d37577c
--- /dev/null
+++ b/UserClass/Log.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Documents;
+using System.Windows.Controls;
+using System.Windows.Media;
+
+namespace formula_manage.UserClass
+{
+    public static class Log
+    {
+        private const int MaxCount = 1000;
+        private static int Count = 0;
+        private static RichTextBox textControl;
+        private static InlineCollection inlines;
+
+        //设置主控件
+        public static void SetTextControl(RichTextBox _textBox)
+        {
+            textControl = _textBox;
+            Paragraph graph = new Paragraph();
+            inlines = graph.Inlines;
+            textControl.Document.Blocks.Add(graph);
+        }
+
+        //输出黑色消息
+        public static void Info(string format, params object[] args)
+        {
+            AppendText(Brushes.Black, format, args);
+        }
+
+        //输出绿色消息
+        public static void Suc(string format, params object[] args)
+        {
+            AppendText(Brushes.DarkGreen, format, args);
+        }
+
+        //输出黄色消息
+        public static void Warning(string format, params object[] args)
+        {
+            AppendText(Brushes.DarkOrange, format, args);
+        }
+
+        //输出红色消息
+        public static void Error(string format, params object[] args)
+        {
+            AppendText(Brushes.Red, format, args);
+        }
+
+        //清除日志
+        public static void Clear()
+        {
+            Count = 0;
+            inlines.Clear();
+            textControl.ScrollToEnd();
+        }
+
+        private static void AppendText(Brush color, string format, params object[] args)
+        {
+            textControl.BeginChange();
+            StringBuilder builder = new StringBuilder();
+            builder.Append("[");
+            builder.Append(Count++);
+            builder.Append("] : ");
+            builder.Append(string.Format(format, (object[])args));
+            builder.Append("\n");
+            string str = builder.ToString();
+            inlines.Add(new Run(str) { Foreground = color });
+            if (inlines.Count > MaxCount)
+            {
+                inlines.Remove(inlines.FirstInline);
+            }
+            textControl.ScrollToEnd();
+            textControl.EndChange();
+        }
+
+    }
+}
diff --git a/formula_manage.csproj b/formula_manage.csproj
index 8b0fef6..545622a 100644
--- a/formula_manage.csproj
+++ b/formula_manage.csproj
@@ -261,6 +261,7 @@
     <Compile Include="UserClass\DataGridHelper.cs" />
     <Compile Include="UserClass\HardwareSN.cs" />
     <Compile Include="UserClass\IniFile.cs" />
+    <Compile Include="UserClass\Log.cs" />
     <Compile Include="UserClass\MD5check.cs" />
     <Compile Include="UserClass\PressKey.cs" />
     <Compile Include="UserClass\DataTableForToObservableCollection.cs" />