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Insert a line at specific line number with sed or awk
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user unknownuser unknown
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使用Activity启动器组件 · App Inventor 2 中文网
...其包名和类名。 如果你有 App Inventor 应用程序的源代码（aia 文件），你可以按如下方式找到这些名称：
将源代码下载到你的计算机。
使用文件资源管理器或解压缩实用程序，找到名为 youngandroidproject/project.properties 的文件。
第...
JavaScript + Unicode regexes
...e original page is down, the Internet Archive still has a copy.)
Flagrant Badassery has an article on JavaScript, Regex, and Unicode that sheds some light on the matter.
Also read Regex and Unicode here on SO. Probably you have to build your own "punctuation character class".
Check out the Regula...
In C++, what is a “namespace alias”?
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user2168377user2168377
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Java switch statement: Constant expression required, but it IS constant
...ression to be known at compile time to compile a switch, but why isn't Foo.BA_ constant?
While they are constant from the perspective of any code that executes after the fields have been initialized, they are not a compile time constant in the sense required by the JLS; see §15.28 Constant Expres...
throwing exceptions out of a destructor
...opagating the application will terminate.
#include <iostream>
class Bad
{
public:
// Added the noexcept(false) so the code keeps its original meaning.
// Post C++11 destructors are by default `noexcept(true)` and
// this will (by default) call terminate if an excep...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
...必读 中文教程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP 搜索 App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地...
Start / Stop a Windows Service from a non-Administrator user account
...like this:
D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
It lists all the permissions each User / Group on this computer has with regards to .
A description of one part of above command is ...
Generating v5 UUID. What is name and namespace?
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Name and namespace can be used to create a hierarchy of (very probably) unique UUIDs.
Roughly speaking, a type 3 or type 5 UUID is generated by hashing together a namespace identifier with a name. Type 3 UUIDs use MD5 and type 5 UUIDs use SHA1. Only 128-bits are available and 5 bits are u...
Checkout subdirectories in Git?
... And is there a way to rename those folders? If I sparse checkout /foo/bar/foobar, is it possible to see it only as /foobar in my local repository?
– graywolf
Aug 5 '18 at 11:11
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