好記性不如爛筆頭
import java.util.Scanner;public class ChengJiDengJi { /** * @param args */ static double mark ; public static void main(String[] args) { // TODO Auto-generated method stub while(true){ try { Scanner sca = new Scanner(System.in); mark = sca.nextDouble(); if(mark>=0&&mark<=100){ break; } System.out.新聞熱點
疑難解答
