static int f(){ //k進制轉換爲十進制
Scanner input = new Scanner(System.in);
System.out.print("K進制數轉換爲十進制算法:輸入 K:");
int k = input.nextInt();
Scanner input1 = new Scanner(System.in);
System.out.print("輸入要轉換的" + k + "進制數:");
String s = input1.nextLine();
return Integer.parseInt(s,k);
}
static String f1(){ //十進制轉換爲k進制
Scanner input = new Scanner(System.in);
System.out.print("十進制數轉換爲k進制算法:輸入 K:");
int k = input.nextInt();
Scanner input1 = new Scanner(System.in);
System.out.print("輸入要轉換的十進制數:");
int s = input.nextInt();
return Integer.toString(s,k);
}