大约有 40,000 项符合查询结果(耗时:0.0660秒) [XML]

https://stackoverflow.com/ques... 

Create or write/append in text file

... Try something like this: $txt = "user id date"; $myfile = file_put_contents('logs.txt', $txt.PHP_EOL , FILE_APPEND | LOCK_EX); share | improve this answer | fol...
https://stackoverflow.com/ques... 

Is there a NumPy function to return the first index of something in an array?

...: itemindex = numpy.where(array==item) The result is a tuple with first all the row indices, then all the column indices. For example, if an array is two dimensions and it contained your item at two locations then array[itemindex[0][0]][itemindex[1][0]] would be equal to your item and so woul...
https://stackoverflow.com/ques... 

Finding current executable's path without /proc/self/exe

...e) method is to use argv[0]. Although it could be set to anything by the calling program, by convention it is set to either a path name of the executable or a name that was found using $PATH. Some shells, including bash and ksh, set the environment variable "_" to the full path of the executable be...
https://stackoverflow.com/ques... 

Remove duplicate dict in list in Python

... {'a': 3222, 'b': 1234}, {'a': 123, 'b': 1234}] seen = set() new_l = [] for d in l: t = tuple(d.items()) if t not in seen: seen.add(t) new_l.append(d) print new_l Example output: [{'a': 123, 'b': 1234}, {'a': 3222, 'b': 1234}] Note: As pointed out by @alexis ...
https://stackoverflow.com/ques... 

How to install both Python 2.x and Python 3.x in Windows

...I need to use the Python Imaging Library (PIL), ImageMagick, and wxPython, all of which require Python 2.x. 18 Answers ...
https://stackoverflow.com/ques... 

Different return values the first and second time with Moq

...ou can setup a sequence of events using SetupSequence. Here's an example: _mockClient.SetupSequence(m => m.Connect(It.IsAny<String>(), It.IsAny<int>(), It.IsAny<int>())) .Throws(new SocketException()) .Throws(new SocketException()) .Returns(true) ...
https://stackoverflow.com/ques... 

Get fully qualified class name of an object in Python

...lowing program #! /usr/bin/env python import foo def fullname(o): # o.__module__ + "." + o.__class__.__qualname__ is an example in # this context of H.L. Mencken's "neat, plausible, and wrong." # Python makes no guarantees as to whether the __module__ special # attribute is defined, so we...
https://stackoverflow.com/ques... 

What is the correct way of using C++11's range-based for?

...x << ' '; } the output is something like: [... copy constructor calls for vector<X> initialization ...] Elements: X copy ctor. 1 X copy ctor. 3 X copy ctor. 5 X copy ctor. 7 X copy ctor. 9 As it can be read from the output, copy constructor calls are made during range-based for l...
https://stackoverflow.com/ques... 

Why do we need the “finally” clause in Python?

I am not sure why we need finally in try...except...finally statements. In my opinion, this code block 14 Answers ...
https://stackoverflow.com/ques... 

Using the rJava package on Win7 64 bit with R

I'm trying to install rJava on a computer with Win 7 64 bit. When I run 12 Answers 1...