大约有 40,000 项符合查询结果(耗时:0.0553秒) [XML]

https://stackoverflow.com/ques... 

Sending HTML email using Python

...multiple messages? Should I quit everytime I send the message or send them all (in a for loop) and then quit once and for all? – xpanta May 9 '12 at 9:58 1 ...
https://stackoverflow.com/ques... 

An error occurred while validating. HRESULT = '8000000A'

...t item. We've run into this as well, and had a very unsatisfying support call on this issue with Microsoft. Long story short: it's a known issue, it won't be solved, and Microsoft advises to move away from Visual Studio Setup projects (.vdproj). We've worked around this issue by triggering the MSI...
https://stackoverflow.com/ques... 

What is the Python equivalent of static variables inside a function?

... there is only one instance of foo - this one function. all invocations access the same variable. – Claudiu Nov 10 '08 at 23:49 124 ...
https://stackoverflow.com/ques... 

How does BLAS get such extreme performance?

...e optimization. This boost significantly exceeds the second boost from parallelism and other hardware optimizations. By the way, most (or even all) of the high performance BLAS implementations are NOT implemented in Fortran. ATLAS is implemented in C. GotoBLAS/OpenBLAS is implemented in C and i...
https://stackoverflow.com/ques... 

Case objects vs Enumerations in Scala

... deal with an Option[Currency] type that would clearly indicate there is really a matching problem and "encourage" the user of the API to sort it out him/herself. To follow up on the other answers here, the main drawbacks of case objects over Enumerations are: Can't iterate over all instances of t...
https://stackoverflow.com/ques... 

How to get object length [duplicate]

... This is actually worse than using a simple loop and counter because of the added overhead of the callback function. – nullability Feb 19 '13 at 17:35 ...
https://stackoverflow.com/ques... 

/usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.15' not found

... I'm compiling gcc 4.6 from source, and apparently sudo make install didn't catch this one. I dug around and found gcc/trunk/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.15 I copied it in to /usr/lib and redirected libstdc++.so.6 to point to the new one, and now e...
https://stackoverflow.com/ques... 

Finding the index of elements based on a condition using python list comprehension

... In Python, you wouldn't use indexes for this at all, but just deal with the values—[value for value in a if value > 2]. Usually dealing with indexes means you're not doing something the best way. If you do need an API similar to Matlab's, you would use numpy, a packag...
https://stackoverflow.com/ques... 

Iterating over Java collections in Scala

... As of Scala 2.8, all you have to do is to import the JavaConversions object, which already declares the appropriate conversions. import scala.collection.JavaConversions._ This won't work in previous versions though. ...
https://stackoverflow.com/ques... 

What is the fastest way to send 100,000 HTTP requests in Python?

...rogram correctly. Has anyone come across a similar problem? I guess generally I need to know how to perform thousands of tasks in Python as fast as possible - I suppose that means 'concurrently'. ...