大约有 11,287 项符合查询结果(耗时:0.0193秒) [XML]
How to use “/” (directory separator) in both Linux and Windows in Python?
...der, if I want to use the code in windows it will not work, is there a way by which I can use the code in Windows and Linux.
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Executing multi-line statements in the one-line command-line?
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you could do
echo -e "import sys\nfor r in range(10): print 'rob'" | python
or w/out pipes:
python -c "exec(\"import sys\nfor r in range(10): print 'rob'\")"
or
(echo "import sys" ; echo "for r in range(10): print 'rob'") | python
or @SilentGhost's answer / @Crast's answer
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Finding all cycles in a directed graph
...which lists all (elementary) cycles of a directed graph. It is from Donald B. Johnson and the paper can be found in the following link:
http://www.cs.tufts.edu/comp/150GA/homeworks/hw1/Johnson%2075.PDF
A java implementation can be found in:
http://normalisiert.de/code/java/elementaryCycles.zip
A...
What is the best method to merge two PHP objects?
We have two PHP5 objects and would like to merge the content of one into the second. There are no notion of subclasses between them so the solutions described in the following topic cannot apply.
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How to sort Counter by value? - python
...ns of reversed list comprehension, is there a pythonic way to sort Counter by value? If so, it is faster than this:
4 Answe...
What breaking changes are introduced in C++11?
...se some old code to stop compiling: the introduction of explicit operator bool() in the standard library, replacing old instances of operator void*() . Granted, the code that this will break is probably code that should not have been valid in the first place, but it's still a breaking change none...
C++静态和多态,亦敌亦友 - C/C++ - 清泛网 - 专注C/C++及内核技术
...遭遇静态函数
#include <iostream>
using namespace std;
class Base
{
public:
virtual void foo(void){ cout << "Base::foo()" << endl; }
};
class Derived : public Base
{
public:
void foo(void){ cout << "Derived::foo()" << endl; }
} ;
class DerivedAgain : public Derived
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Combine two data frames by rows (rbind) when they have different sets of columns
Is it possible to row bind two data frames that don't have the same set of columns? I am hoping to retain the columns that do not match after the bind.
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Get hours difference between two dates in Moment Js
I'm able to get the difference between two dates using MomentJs as follows:
12 Answers
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Java ArrayList - how can I tell if two lists are equal, order not mattering?
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You could sort both lists using Collections.sort() and then use the equals method. A slighly better solution is to first check if they are the same length before ordering, if they are not, then they are not equal, then sort, then use equals...