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In-memory size of a Python structure
...ere a reference for the memory size of Python data stucture on 32- and 64-bit platforms?
7 Answers
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List goals/targets in GNU make that contain variables in their definition
...(VAR) : $(PREREQS)). Is there any way that gnu make can be convinced to spit out a list of targets after it has expanded these variables?
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sqlalchemy: how to join several tables by one query?
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edited Apr 8 at 9:57
Ryabchenko Alexander
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Replacing Spaces with Underscores
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As of others have explained how to do it using str_replace, you can also use regex to achieve this.
$name = preg_replace('/\s+/', '_', $name);
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[精华] VC中BSTR、Char和CString类型的转换 - C/C++ - 清泛网 - 专注C/C++及内核技术
..."This is a test";
或在已定义Unicode应的用程序中
TCHAR * p = _T("This is a test");
或
LPTSTR p = _T("This is a test");
CString theString = chArray;
theString.format(_T("%s"), chArray);
theString = p;
2、CString转换成char*
若将CString类转换成char*(LPSTR)类型，常...
Managing constructors with many parameters in Java
...e of our projects, there's an class hierarchy that adds more parameters as it goes down the chain. At the bottom, some of the classes can have up to 30 parameters, 28 of which are just being passed into the super constructor.
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Importing from a relative path in Python
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EDIT Nov 2014 (3 years later):
Python 2.6 and 3.x supports proper relative imports, where you can avoid doing anything hacky. With this method, you know you are getting a relative import rather than an absolute import. The '...
How do you debug PHP scripts? [closed]
...clipse environment that has debugging features like you mentioned. The ability to step into the code is a much better way to debug then the old method of var_dump and print at various points to see where your flow goes wrong. When all else fails though and all I have is SSH and vim I still var_dump(...
How to use the PI constant in C++
...nometric functions in some C++ program. I get the trigonometric functions with include <math.h> . However, there doesn't seem to be a definition for PI in this header file.
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How do I create a variable number of variables?
...ou can use variable key names to achieve the effect of variable variables without the security risk.
>>> x = "spam"
>>> z = {x: "eggs"}
>>> z["spam"]
'eggs'
For cases where you're thinking of doing something like
var1 = 'foo'
var2 = 'bar'
var3 = 'baz'
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a list may ...