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Tetris-ing an array
...lt; $count; $i++) {
$length = min($length, strspn($array[$i] ^ $first, chr(0)));
}
After that single loop, the $length variable will be equal to the longest common basepart between the array of strings. Then, we can extract the common part from the first element:
$common = substr($array[0], ...
20个命令行工具监控 Linux 系统性能 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...包括 Apache、MYSQL、Mail、FTP、Nginx 等等。系统状态是可以从命令行或者自己的网络接口来查看。
12. NetHogs — 监视每个进程的网络带宽
NetHogs 是一个开源的漂亮的小程序（类似于 Linux 上面的 top 命令），在您的系统上保持每个进...
How to remove all whitespace from a string?
...ish(.))) %>%
ungroup()
df
# A tibble: 2 x 2
a b
<chr> <chr>
1 aZe aze s 12 12
2 wxc s aze 34e e4
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follo...
Ora-00257 错误处理一列 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...
2014_11_05/
2014_11_06/
2014_11_07/
2014_11_10/
然后开始删除从最早的开始删除
检查一些无用的archivelog
RMAN> crosscheck archivelog all;
删除过期的归档
RMAN> delete expired archivelog all;
注：删除过期的归档
这样就把归档文件删除了...
Windows XP or later Windows: How can I run a batch file in the background with no window displayed?
...
Do you need the second batch file to run asynchronously? Typically one batch file runs another synchronously with the call command, and the second one would share the first one's window.
You can use start /b second.bat to launch a second batch file asynchronously from...
How to read data when some numbers contain commas as thousand separator?
..."1,800\"\n\"3500\"\n6.5")
Source: local data frame [4 x 1]
numbers
(chr)
1 800
2 1,800
3 3500
4 6.5
(Notice that it is now a chr (character) instead of a numeric.)
Or, more dangerously, if it were long enough and most of the early elements did not contain commas:
> set.see...
AccessibilityTools 无障碍工具扩展：执行返回、主页和最近任务等操作 · A...
...tScreen激活分屏()
激活设备的分屏功能。原帖说明该功能从 API 26、Android Oreo 8.1.0 起可用。
AskForPermissions请求无障碍权限()
请求无障碍权限。
IsPermissionGranted权限是否已授予()
检查权限是否已授予。
属性
...
boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
...iner,Tag>::type& i = get<Tag>(s);这段代码定义了一个容器索引，从容器s中提取出Tag标签作为索引的序列i（对于有序的容器也可以说是用Tag排序的序列），接下来是typedef typename MultiIndexContainer::value_type value_type;语句定义了容器的元素类...
linux 通过bind下搭建DNS Server - 更多技术 - 清泛网 - 专注C/C++及内核技术
...有区域数据的文件，并对整个区域数据进行管理。
slave(从服务器或叫辅助服务器）：拥有主DNS服力器的区域文件的副 本，辅助主DNS服务器对客户端进行解析，当主DNS服务器坏了后，可以完全接替主服务器的工作。
forward:将任...
How can I use a C++ library from node.js?
...nswered May 14 '14 at 6:02
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