switch应与case配合使用
可以使用多个case语句 实现同一个结果
不要忘了break
思考:如何能一次运行 在cmd界面多次输入季节
import java.util.Scanner; public class TestFestival { public static void main(String[] args) { Scanner s = new Scanner(System.in); System.out.println("欢迎使用季节判断计算器"); int month = s.nextInt(); String season; switch (month) { case 1: case 2: case 3: season = "春天"; break; case 4: case 5: case 6: season = "夏天"; break; case 7: case 8: case 9: season = "秋天"; break; case 10: case 11: case 12: season = "冬天"; break; default: season = "这是什么鬼~"; } System.out.println(season); } }