Given a 32-bit signed integer, reverse digits of an integer. 将32位整数反向输出. Note:Assume we are dealing with an environment which could only store integers within the 32-bit signed integer range: [−231, 231 − 1]. For the purpose of this problem, assume
1.命令功能 rev 按行反向输出文件内容 2.语法格式 rev file 3.使用范例 [root@localhost ~]# echo {a..k} >> test [root@localhost ~]# cat test a b c d e f g h i j k [root@localhost ~]# rev test k j i h g f e d c b a [root@localhost ~]# echo {a..k} |rev k j i h g f e d c b a
10-2. 返回输出参数 问题 想获取存储过程里的一个或多个输出参数的值 解决方案 假设我们有一个像Figure 10-1所示的,出租车辆与租金收入的模型 Figure 10-1.出租车辆与租金收入的模型 我们想知道在指定日期里,收入了几笔租金和金额, 以及车辆的租凭情况. 存储过程Listing 10-7 就是获取这些信息的. Listing 10-7. A Stored Procedure for the Vehicles Rented, the Number of Rentals, and
今天想用一下显示器自带的喇叭,忽然发现声音输出选项里HDMI的声音设备没了.之前开始使用这台显示器的时是用过一段时间的. 百度了一番,没发现什么线索.后来去谷歌找到这么一段文字: I'm not sure where to report this, but after I upgraded a Lenovo Y50 laptop to Win 10 64 Enterprise, the HDMI audio stopped working. All the drivers were instal