羽落苍梧的博客public class cjzh { public static void main(String[] args) { Scanner sc = new Scanner(System.in);...System.out.println("请输入数字"); cj = sc.nextDouble(); String pf; int grade = (int) (cj
久远jy_naru的博客/*用switch语句将成绩等级转换为百分制等级 A 85~100 B 70~84 C 60~69 D 不及格 */ import java.util.*; public class Example3_7 { public static void main(String[] args) { String grade; Scanner reader ...