题解 | #进制转换#

进制转化
就从输入第三个字符开始进行遍历，判断是数组还是字母，然后进行分别处理

import java.util.*;
public class Main {
     public static void main(String[] args){
         Scanner scanner = new Scanner(System.in);
         while(scanner.hasNext()){
             String str = scanner.nextLine();
             int len = str.length();
             int ans = 0, temp = 0;
             for(int i = 2; i < len; i++){
                 char c = str.charAt(i);
                 if(Character.isDigit(c)){
                     temp = c - '0';
                 }else{
                     temp = c - 'A' + 10;
                 }
                 ans = ans * 16 + temp;
             }
             System.out.println(ans);
         }
     }
}