为了实现excel表格最顶端的字母排序，就绞尽脑汁想了下如何实现自定义进制。俺想的实现方法可能比较复杂。
如果你能简化或操作更方便，请告诉我并互相学习。谢谢
[En]
If you can simplify or have more convenient operation, please tell me about it and learn from each other. Thanks a lot
Java版
这边直接代码过来
```java
public static void main(String[] args) {
String SetStyle = "0123456789ABCDEF";
int digit = SetStyle.length();
String[] get = null;
Scanner sc = new Scanner(System.in);
int num = sc.nextInt();
int origin = num;
int size = 1;
if(num >= digit){