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How to fix “Attempted relative import in non-package” even with __init__.py
...ry to execute the above shell command, the fact that you need __init__.pys all the way down, and the __package__-modifying trickery (described below by BrenBarn) needed to allow these imports for executable scripts (e.g. when using a shebang and doing ./my_script.py at the Unix shell) would all be u...
What do I use for a max-heap implementation in Python?
... amazed that there IS such a built-in solution in heapq. But then it is totally unreasonable that it is NOT even slightly mentioned at all in the official document! WTF!
– RayLuo
Apr 21 '15 at 6:48
...
cmake与autoconf+automake的对比 - C/C++ - 清泛网 - 专注C/C++及内核技术
...]]
[COMPONENT < component >][OPTIONAL]] [...])
其他文件
EXTRA_DIST
install(FILES files.. )
install(DIRECTORY dirs..)
条件语句
使用Make的条件语句
if()
endif
if(my)
else(my)
endif(my)
while(condition)
endwhile(condition)
执行外部命...
VC 对话框背景颜色、控件颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...gDlg::OnInitDialog()
{
...
// TODO: Add extra initialization here
m_brush.CreateSolidBrush(RGB(0, 255, 0)); // 生成一绿色刷子
...
}
③利用ClassWizard重载OnCtlColor(…)，即WM_CTLCOLOR消息：
HBRUSH CE...
How to change the decimal separator of DecimalFormat from comma to dot/point?
...little crazy method that converts BigDecimal values into nice and readable Strings.
6 Answers
...
Dynamically access object property using variable
...ful with this: javascript compilers will error here since they dont rename strings but they do rename object properties
– chacham15
Dec 6 '11 at 8:40
6
...
领域驱动设计系列（五）:事件驱动之异步事件 - 更多技术 - 清泛网 - 专注C/...
...void Handle(TEvent e);
}
public class HeadedEvent:Event
{
public string Name { get; set; }
}
public class GuoJiZhangMotherEventHandler : IEventHandler<HeadedEvent>
{
public void Handle(HeadedEvent e)
{
Console.WriteLine(e.Name+", Are you kidding me?");
}
}
...
Java - No enclosing instance of type Foo is accessible
...ce of Hello before creating an instance of Thing.
public static void main(String[] args)
{
Hello h = new Hello();
Thing thing1 = h.new Thing(); // hope this syntax is right, typing on the fly :P
}
The last solution (a non-static nested class) would be mandatory if any instance of Thing d...
How to interpolate variables in strings in JavaScript, without concatenation?
...
You can take advantage of Template Literals and use this syntax:
`String text ${expression}`
Template literals are enclosed by the back-tick (` `) (grave accent) instead of double or single quotes.
This feature has been introduced in ES2015 (ES6).
Example
var a = 5;
var b = 10;
con...
Convert JSON to Map
...-databind/#5-minute-tutorial-streaming-parser-generator), you'd do:
Map<String,Object> result =
new ObjectMapper().readValue(JSON_SOURCE, HashMap.class);
(where JSON_SOURCE is a File, input stream, reader, or json content String)
...