摘要：Scanner s = new Scanner(System.in); System.out.println("请输入年龄:"); int a = s.nextInt(); boolean t = a >= 18 ? true: false; System.out.println(t); 阅读全文

摘要：System.out.println("请输入客户所买的商品单价："); Scanner s = new Scanner(System.in); int e = s.nextInt(); System.out.println("请输入够买数量："); int b = s.nextInt(); Sys 阅读全文