diff --git a/log.java b/log.java
deleted file mode 100644
index c9c613b..0000000
--- a/log.java
+++ /dev/null
@@ -1,23 +0,0 @@
-package calculator;
-import java.util.Scanner;
-public class log {
-	
-		public log() {
-			Scanner sc = new Scanner(System.in);
-			System.out.println("请输入底数a");
-			double a = sc.nextDouble();
-			System.out.println("请输入真数x");
-			double x = sc.nextDouble();
-			if(x>0&&a>0&&a!=1)
-			{
-				double result = log(a,x);
-			    System.out.println("结果为:"+result);
-			}
-			else
-			System.out.println("errors ");
-		}
-
-		public static double log(double a, double x){
-			return Math.log(x) / Math.log(a);
-		}
-}