import java.util.Scanner; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); String hex = in.nextLine(); //去掉0x前缀 hex = hex.substring(2); int decimal = hexToDecimal(hex); System.out.println(decimal); } public static...
