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What is a singleton in C#?
...Prevent outside instantiation
}
private static readonly Singleton _singleton = new Singleton();
public static Singleton GetSingleton()
{
return _singleton;
}
}
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...
Git Symlinks in Windows
... on Windows
git config --global alias.add-symlink '!'"$(cat <<'ETX'
__git_add_symlink() {
if [ $# -ne 2 ] || [ "$1" = "-h" ]; then
printf '%b\n' \
'usage: git add-symlink <source_file_or_dir> <target_symlink>\n' \
'Create a symlink in a git repository on a Wi...
MFC 日期时间控件CDateTimeCtrl自绘 - C/C++ - 清泛网 - 专注C/C++及内核技术
...效果：方法同ComboBox自绘（http: www.tsingfun.com html 2016 code_1110 100.html），采用图片拼接的方式，本例实现较基础仍有细节待...先看效果：
方法同ComboBox自绘（https://www.tsingfun.com/down/code/100.html），采用图片拼接的方式，本例实现...
How can I use PowerShell with the Visual Studio Command Prompt?
...t Visual Studio 10.0\VC'
cmd /c "vcvarsall.bat&set" |
foreach {
if ($_ -match "=") {
$v = $_.split("="); set-item -force -path "ENV:\$($v[0])" -value "$($v[1])"
}
}
popd
write-host "`nVisual Studio 2010 Command Prompt variables set." -ForegroundColor Yellow
This has worked well for ye...
What is the purpose of python's inner classes?
...
Quoted from http://www.geekinterview.com/question_details/64739:
Advantages of inner class:
Logical grouping of classes: If a class is useful to only one other class then it is logical to embed it in that class and keep the two together. Nesting such "helper cla...
What is the best practice for “Copy Local” and with project references?
...@(AllItemsFullPathWithTargetPath)"
DependsOnTargets="AssignTargetPaths;_SplitProjectReferencesByFileExistence">
<!-- Get items from this project last so that they will be copied last. -->
<CreateItem
Include="@(ContentWithTargetPath->'%(FullPath)')"
Condit...
Using $_POST to get select option value from HTML
...
Use this way:
$selectOption = $_POST['taskOption'];
But it is always better to give values to your <option> tags.
<select name="taskOption">
<option value="1">First</option>
<option value="2">Second</option>
<...
What is the type of lambda when deduced with “auto” in C++11?
... is no such thing as "a name the compiler decides upon". The result of type_info::name() is implementation-defined, so it may return anything. In practice, the compiler will name the type for the sake of the linker.
– avakar
Oct 31 '11 at 19:46
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How do I find the location of Python module sources?
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For a pure python module you can find the source by looking at themodule.__file__.
The datetime module, however, is written in C, and therefore datetime.__file__ points to a .so file (there is no datetime.__file__ on Windows), and therefore, you can't see the source.
If you download a python sour...
Expand Python Search Path to Other Source
...thing like
import sys
from os.path import dirname
sys.path.append(dirname(__file__))
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