diff --git a/.github/hello.ts b/.github/hello.ts
new file mode 100644
index 0000000..6187feb
--- /dev/null
+++ b/.github/hello.ts
@@ -0,0 +1,2 @@
+const hello : string = "Hello World"
+console.log(hello)
diff --git a/.github/helloworld.cs b/.github/helloworld.cs
new file mode 100644
index 0000000..0a720dc
--- /dev/null
+++ b/.github/helloworld.cs
@@ -0,0 +1,16 @@
+// A Hello World! program in C#.
+using System;
+namespace HelloWorld
+{
+    class Hello 
+    {
+        static void Main() 
+        {
+            Console.WriteLine("Hello World");
+
+            // Keep the console window open in debug mode.
+            Console.WriteLine("Press any key to exit.");
+            Console.ReadKey();
+        }
+    }
+}
diff --git a/.github/冲出你的窗口.png b/.github/冲出你的窗口.png
new file mode 100644
index 0000000..9196085
Binary files /dev/null and b/.github/冲出你的窗口.png differ