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wpf 获取image控件的图片并保存
XMAL代码如下: <Image Name="ImageToSave" Source="Images/pic_bg.png" Grid.RowSpan="3" Grid.ColumnSpan="3" ></Image> C#代码如下: SaveFileDialog sfd = new SaveFil ...
分类:Windows程序   时间:2017-11-15 22:13:17    阅读次数:211
selinux-网络服务安全
一、显示和设置selinux [root@localhost ~]# vim /etc/sysconfig/selinux //强制模式 许可模式 禁用模式 [root@localhost ~]# getenforce //查看当前SElinux的状态 [root@localhost ~]# set ...
分类:系统相关   时间:2017-11-15 21:48:25    阅读次数:147
canvas入门(五)
canvas一样可以使用图形变换。 位移,translate(x, y); 旋转:retate(deg); 缩放:scale(sx,sy); 但这个过程有个陷阱,如 效果如下: 可以发现,translate的数据叠加了。所以在绘制过程中应该使用save()和restore(); 效果回复正常。 ...
分类:其他好文   时间:2017-11-14 19:36:38    阅读次数:129
053-401
Which of the following are correct about block media recovery? (Choose all that apply.) A. Physical and logical block corruption is recorded automatic ...
分类:其他好文   时间:2017-11-13 20:05:04    阅读次数:192
053-352
If a backup is expired, which of the following is true?A. It can never be used for a restore/recover operation.B. Oracle will remove the backup set pi ...
分类:其他好文   时间:2017-11-10 20:35:36    阅读次数:338
053-350
Why would you execute the report obsolete command?A. To list all backups that were no longer available for restore operationsB. To list all backups th ...
分类:其他好文   时间:2017-11-10 20:33:05    阅读次数:218
053-326
Which of the following does the recover command not do? A. Restore archived redo logs.B. Apply archived redo logs.C. Restore incremental backups.D. Ap ...
分类:其他好文   时间:2017-11-10 16:54:08    阅读次数:168
053-315
Which commands are used for RMAN database recovery? (Choose all that apply.)A. restoreB. repairC. copyD. recoverE. replace The restore command is used ...
分类:其他好文   时间:2017-11-10 15:04:56    阅读次数:125
053-576
Your developers have asked you to restore the development database, which is in NOARCHIVELOG mode, back to last Tuesday the 20th. Your last backup is ...
分类:其他好文   时间:2017-11-09 16:30:08    阅读次数:198
Oracle涂抹oracle学习笔记第9章RMAN说,我能恢复
RMAN中的恢复对应两个操作:数据库修复(restore)和数据库恢复(recover) 数据库修复(restore):是指利用备份集的数据文件来替换已经损坏的数据库文件或者将其恢复到一个新的位置.RMAN在进行修复操作时,会利用恢复目录(没有建立恢复目录就使用目标数据库的控制文件)来获取备份信息 ...
分类:数据库   时间:2017-11-07 19:58:34    阅读次数:227
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