大约有 40,000 项符合查询结果(耗时:0.0497秒) [XML]

https://stackoverflow.com/ques... 

What is __init__.py for?

...kages as they existed in Python 3.2 and earlier. A regular package is typically implemented as a directory containing an __init__.py file. When a regular package is imported, this __init__.py file is implicitly executed, and the objects it defines are bound to names in the package’s namespace. The...
https://stackoverflow.com/ques... 

What is time_t ultimately a typedef to?

...IX-compliant systems implement the time_t type as a signed integer (typically 32 or 64 bits wide) which represents the number of seconds since the start of the Unix epoch: midnight UTC of January 1, 1970 (not counting leap seconds). Some systems correctly handle negative time values, w...
https://stackoverflow.com/ques... 

What is the difference between save and insert in Mongo DB?

... Save Vs Insert : In your given examples, the behavior is essentially the same. save behaves differently if it is passed with an "_id" parameter. For save, If the document contains _id, it will upsert querying the collection on the _id field, If not, it will insert. If a document does not...
https://stackoverflow.com/ques... 

Getting number of elements in an iterator in Python

...ve an answer, this answer avoids instantiation of a list, and it is empirically faster by a constant than the reduce method listed above. – Phillip Nordwall Aug 2 '12 at 15:27 5 ...
https://stackoverflow.com/ques... 

What to do Regular expression pattern doesn't match anywhere in string?

... Contrary to all the answers here, for what you're trying to do regex is a perfectly valid solution. This is because you are NOT trying to match balanced tags-- THAT would be impossible with regex! But you are only matching what's in one ...
https://stackoverflow.com/ques... 

What is the effect of extern “C” in C++?

...very compiler is required to provide "C" linkage A linkage specification shall occur only in namespace scope All function types, function names and variable names have a language linkage See Richard's Comment: Only function names and variable names with external linkage have a language linkage Two ...
https://stackoverflow.com/ques... 

Why does this go into an infinite loop?

... Note: Originally I posted C# code in this answer for purposes of illustration, since C# allows you to pass int parameters by reference with the ref keyword. I've decided to update it with actual legal Java code using the first MutableInt...
https://stackoverflow.com/ques... 

django urls without a trailing slash do not redirect

...ost.". "The APPEND_SLASH setting is only used if CommonMiddleware is installed...". I prefer Michael Gendin's answer for a cleaner solution. – Wtower Feb 11 '15 at 9:26 ...
https://stackoverflow.com/ques... 

How can I change Mac OS's default Java VM returned from /usr/libexec/java_home

...'`" But standard double-clickable application bundles don't use JDKs installed under /Library/Java at all. Old-style .app bundles using Apple's JavaApplicationStub will use Apple Java 6 from /System/Library/Frameworks, and new-style ones built with AppBundler without a bundled JRE will use the "p...
https://stackoverflow.com/ques... 

What is the best practice for “Copy Local” and with project references?

...=================== GetCopyToOutputDirectoryItems Get all project items that may need to be transferred to the output directory. ============================================================ --> <Target Name="GetCopyToOutputDirectoryItems" Outputs="@(AllItemsFullPat...