int month = r.nextInt(12)+1;
System.out.println("当前月份为"+month);
switch (month) {
case 1:case 3:case 5:case 7:case 8:case 10:case 12:
System.out.println("本月有31天");
break;
case 2:
System.out.println("本月有28天");
break;
default:
System.out.println("本月有30天");
break;
}
我看不懂啊……我才学
本回答被提问者采纳...12之间的整数,利用Switch语句输出对应月份的天数.
public static void main(String[] args) { Scanner scan = new Scanner(System.in);int i = scan.nextInt();if (i<1&&i>12) { System.out.println("请重新输入月份");i = scan.nextInt();} switch(i){ case 1: System.out.println("本月有31天");break;case 2: System.out.p...
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python打印某年某月有多少天(2023年最新整理)
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