摘要：
1.Scamner 获得一组数据的最大值和平均值 public static void main(String[] args){ Scanner scanner = new Scanner(System.in); double sum = 0; int m = 0; while (scanner.h 阅读全文
摘要：
用户交互scanner public class Test{ public static void main(String[] args){ Scanner scanner = new Scanner(System.in); String str = scanner.nextLine(); Syst 阅读全文