From 6b186b78b6200a1b0929a2822523b05441aedeeb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=92=8B=E8=92=B8?= <3505869163@qq.com>
Date: Thu, 17 Oct 2024 14:34:05 +0800
Subject: [PATCH] v1

---
 computer/computer.java | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/computer/computer.java b/computer/computer.java
index 790ebab..604be82 100644
--- a/computer/computer.java
+++ b/computer/computer.java
@@ -22,6 +22,31 @@ public class computer {
     }
 
     // 将十进制数转换为R进制数
+    public static String decimalToBase(int num, int r) {
+        if (num == 0) {
+            return "0";
+        }
+
+        StringBuilder result = new StringBuilder();
+
+        while (num > 0) {
+            int remainder = num % r;
+            if (remainder < 10) {
+                result.append(remainder); // 数字字符
+            } else {
+                result.append((char) ('A' + (remainder - 10))); // 字母字符
+            }
+            num /= r;
+        }
+
+        return result.reverse().toString(); // 反转结果
+    }
+
+    // 将任意R进制数X从进制R_from转换到进制R_to
+    public static String convertBase(String x, int rFrom, int rTo) {
+        int decimalValue = baseToDecimal(x, rFrom); // 转换为十进制
+        return decimalToBase(decimalValue, rTo); // 转换为目标进制
+    }
 
     public static void main(String[] args) {
         Scanner scanner = new Scanner(System.in);