diff --git a/exp.java b/exp.java
new file mode 100644
index 0000000..5d67837
--- /dev/null
+++ b/exp.java
@@ -0,0 +1,18 @@
+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);
+     }
+}