From f00ef0a623a0cfbc36cebd04b6afd15a9cf27fe3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=A6=83=E4=BD=99?= <1597326398@qq.com>
Date: Thu, 6 Aug 2020 21:34:05 +0800
Subject: [PATCH] b.java

---
 b.java | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 b.java

diff --git a/b.java b/b.java
new file mode 100644
index 0000000..fc43d09
--- /dev/null
+++ b/b.java
@@ -0,0 +1,20 @@
+//package log;
+import java.util.Scanner;
+public class b {
+    public static void main(String[] args) {
+    	int a;
+    	int x;
+    	double result;
+    	System.out.println("输入底数a(a>0且a！=1):");
+    	Scanner sc = new Scanner(System.in);
+    	a=sc.nextInt();		
+    	System.out.println("输入真数x:");
+    	x=sc.nextInt();		
+        result = log(x, a);
+        System.out.println(result);
+    }
+ 
+    private static double log(double value, double base) {
+        return Math.log10(value) / Math.log10(base);
+    }
+}