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Cartesian product of x and y array points into single array of 2D points
... 5],
[2, 5],
[3, 5]])
See Using numpy to build an array of all combinations of two arrays for a general solution for computing the Cartesian product of N arrays.
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TypeError: 'NoneType' object is not iterable in Python
... Correct, But the common scenario author intended here is totally to skip the for loop instead of raising an exception. Python's design is flawed here. When None is treated as an iterable it must return empty list at least. This exception never helped anyone in real life other than m...
How do I select a random value from an enumeration?
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Use Enum.GetValues to retrieve an array of all values. Then select a random array item.
static Random _R = new Random ();
static T RandomEnumValue<T> ()
{
var v = Enum.GetValues (typeof (T));
return (T) v.GetValue (_R.Next(v.Length));
}
Test:
for (in...
Bash function to find newest file matching pattern
... Your one liner is giving me right answer, but the "right" way is actually giving me the oldest file. Any idea why?
– NewNameStat
Apr 4 '19 at 21:59
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Visul C++中CList用法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...和构造方法
CList的声明如下：
template< class TYPE, class ARG_TYPE >class CList : public CObject
由此，我们知道CList是一个模版类，那么他的两个class是什么意思呢？
下面看一个例子：
CList<CString ,CString&> list;//链表对象1
CList<CString,CString> l...
passing xxx as \'this\' argument of xxx discards qualifiers - C/C++ - 清泛网 - 专注C/C++及内核技术
...ntT {
public:
int id;
string name;
public:
StudentT(int _id, string _name) : id(_id), name(_name) {
}
int getId() { // 应该声明为const成员
return id;
}
string getName() { // 应该声明为const成员
return name;
}
};
inli...
OnMouseMove nFlags的作用 - C/C++ - 清泛网 - 专注C/C++及内核技术
OnMouseMove nFlags的作用afx_msgvoidOnMouseMove(UINTnFlags,CPointpoint);当鼠标移动时调用此函数 。参数：nFlags指示各种虚拟按键是否按下 ，此参数可以是任何...afx_msgvoidOnMouseMove( UINT nFlags, CPoint point ); 当鼠标移动时调用此函数 。
参数：
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Generating Guids in Ruby
I have problem that is really easily solved with Guids.
10 Answers
10
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Activate a virtualenv via fabric as deploy user
I want to run my fabric script locally, which will in turn, log into my server, switch user to deploy, activate the projects .virtualenv, which will change dir to the project and issue a git pull.
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What reference do I need to use Microsoft.Office.Interop.Excel in .NET?
...ws > assembly > GAC > Microsoft.Office.Interop.Excel > 12.0.0.0_etc > Microsoft.Office.Interop.Excel.dll
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