diff --git a/c#/.keep b/c#/.keep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/c#/Util.cs b/c#/Util.cs
new file mode 100644
index 0000000000000000000000000000000000000000..02fba65b7a16c79904761a6e1817ba4b1bdd175b
--- /dev/null
+++ b/c#/Util.cs
@@ -0,0 +1,19 @@
+using System;
+
+namespace test
+{
+    public class Util
+    {
+        /// <summary>
+        /// 返回值加三元运算符值
+        /// 好像没什么不对 -_-!
+        /// </summary>
+        /// <param name="inputValue"></param>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        public static int GetValue(int inputValue, int type)
+        {
+            return inputValue + type == 1 ? 1 : 2;
+        }
+    }
+}