摘要: 一.输出二维数组 public class var { public static void main(String[] args) { int[][] arr = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}}; for (int i = 0; i < arr.length; 阅读全文
posted @ 2022-10-25 19:47 书包里的跳蚤 阅读(47) 评论(0) 推荐(0)