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django change default runserver port

...ith the following: #!/bin/bash exec ./manage.py runserver 0.0.0.0:<your_port> save it as runserver in the same dir as manage.py chmod +x runserver and run it as ./runserver share | imp...
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Why do we need extern “C”{ #include } in C++?

...the prototype as a C function, the C++ will actually generate code calling _Zprintf, plus extra crap at the end.) So: use extern "C" {...} when including a c header—it's that simple. Otherwise, you'll have a mismatch in compiled code, and the linker will choke. For most headers, however, you won'...
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How to use phpexcel to read data and insert into database?

...d an Excel file and transfer the data into a database // Include PHPExcel_IOFactory include 'PHPExcel/IOFactory.php'; $inputFileName = './sampleData/example1.xls'; // Read your Excel workbook try { $inputFileType = PHPExcel_IOFactory::identify($inputFileName); $objReader = PHPExcel_IOFa...
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Any reason not to use '+' to concatenate two strings?

...ucture, especially if it is growing. With list you can use list.extend(list_of_items) and list.append(item) which are much faster when concatenating stuff dynamically. – Antti Haapala Sep 11 '12 at 9:56 ...
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Is it possible to make the -init method private in Objective-C?

... NS_UNAVAILABLE - (instancetype)init NS_UNAVAILABLE; This is a the short version of the unavailable attribute. It first appeared in macOS 10.7 and iOS 5. It is defined in NSObjCRuntime.h as #define NS_UNAVAILABLE UNAVAILABLE_...
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PowerShell script to return versions of .NET Framework on a machine?

...up\NDP' -recurse | Get-ItemProperty -name Version,Release -EA 0 | Where { $_.PSChildName -match '^(?!S)\p{L}'} | Select PSChildName, Version, Release Based on the MSDN article, you could build a lookup table and return the marketing product version number for releases after 4.5: $Lookup = @{ ...
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Transposing a 2D-array in JavaScript

... array[0].map((_, colIndex) => array.map(row => row[colIndex])); map calls a provided callback function once for each element in an array, in order, and constructs a new array from the results. callback is invoked only for indexe...
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Is there a command to refresh environment variables from the command prompt in Windows?

... :SetFromReg "%WinDir%\System32\Reg" QUERY "%~1" /v "%~2" > "%TEMP%\_envset.tmp" 2>NUL for /f "usebackq skip=2 tokens=2,*" %%A IN ("%TEMP%\_envset.tmp") do ( echo/set %~3=%%B ) goto :EOF :: Get a list of environment variables from registry :GetRegEnv "%WinDir%\Syst...
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How to get current PHP page name [duplicate]

... You can use basename() and $_SERVER['PHP_SELF'] to get current page file name echo basename($_SERVER['PHP_SELF']); /* Returns The Current PHP File Name */ share | ...
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解决:Run-Time Check Failure #0,The value of ESP was not properly sav...

...就可以在定义该函数的时候加上一句话, FAR PASCAL 或者 __stdcall 这个就OK了。 具体做法: 比如说你要定义一个 返回类型为空,参数为空的函数指针: typedef void (*LPFUN)(void); 这样确实跟我们dll里的函数匹配了,上面也说...