diff --git a/csharpDemo/Base64Coding.cs b/csharpDemo/Base64Coding.cs
index f92e52f394572df54b63820d61cf16221be0a6d6..9ddd7cc5ecd9d2cccb61e2e7aceda218513809b2 100644
--- a/csharpDemo/Base64Coding.cs
+++ b/csharpDemo/Base64Coding.cs
@@ -11,6 +11,7 @@ namespace csharpDemo
     class Base64Coding
     {
         private Form form1;
+        private Form form2;
         public Base64Coding(Form form1)
         {
             this.form1 = form1;
diff --git a/csharpDemo/Form2.cs b/csharpDemo/Form2.cs
index 320208f933288e3998691f482c912428b54ef0ff..e86217d9f65a074d37abbf90b01d2a82ea57ad75 100644
--- a/csharpDemo/Form2.cs
+++ b/csharpDemo/Form2.cs
@@ -14,7 +14,9 @@ namespace csharpDemo
     {
         public Form2()
         {
+
             InitializeComponent();
+            
         }
 
         private void pictureBox1_Click(object sender, EventArgs e)
diff --git a/csharpDemo/Form3.cs b/csharpDemo/Form3.cs
new file mode 100644
index 0000000000000000000000000000000000000000..d51556a41b4eece5769cac5b1596248cb4972e02
--- /dev/null
+++ b/csharpDemo/Form3.cs
@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace csharpDemo
+{
+    public partial class Form3 : Form
+    {
+        public Form3()
+        {
+
+            InitializeComponent();
+            
+        }
+
+        private void pictureBox1_Click(object sender, EventArgs e)
+        {
+
+        }
+    }
+}