diff --git a/ex.java b/ex.java
deleted file mode 100644
index e85763a..0000000
--- a/ex.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package calculator;
-import java.util.Scanner;
-import java.lang.Math;
-public class ex {
-
-     public ex(){
-    	 
-    	 Scanner input= new Scanner(System.in);
-        
-    		System.out.print("请输入数字x：");
-    		int x=input.nextInt();
-            double e=Math.E;
-            double n=Math.pow(e, x);
-    	
- 
-    	System.out.printf("结果为%.9f\n",n);
-     }
-}