大约有 48,000 项符合查询结果(耗时:0.0865秒) [XML]

https://stackoverflow.com/ques... 

How to request Administrator access inside a batch file

...s method doesn't forward arguments. Do you know How that can be done? Basically what I observe is that on the first line %1 has some value and on the last line %1 is null. I need to forward the arguments. – prongs Jan 11 '13 at 11:54 ...
https://stackoverflow.com/ques... 

How to avoid circular imports in Python? [duplicate]

....py Types of circular import problems Circular import dependencies typically fall into two categories depending on what you're trying to import and where you're using it inside each module. (And whether you're using python 2 or 3). 1. Errors importing modules with circular imports In some cases...
https://stackoverflow.com/ques... 

Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica

...d procedures are always faster. So, since they're always faster, use them ALL THE TIME . 20 Answers ...
https://stackoverflow.com/ques... 

What is the meaning of “__attribute__((packed, aligned(4))) ”

...gned(1))) sSampleStruct; so the above specified gcc attribute does not allow the structure padding. so the size will be 8 bytes. If you wish to do the same for all the structures, simply we can push the alignment value to stack using #pragma #pragma pack(push, 1) //Structure 1 ...... //Stru...
https://stackoverflow.com/ques... 

SASS - use variables across multiple files

I would like to keep one central .scss file that stores all SASS variable definitions for a project. 6 Answers ...
https://stackoverflow.com/ques... 

What is the most efficient string concatenation method in python?

... idiomatic and thus easier for other python programmers to understand. Finally, the golden rule of optimization: don't optimize unless you know you need to, and measure rather than guessing. You can measure different methods using the timeit module. That can tell you which is fastest, instead of r...
https://stackoverflow.com/ques... 

“Large data” work flows using pandas

... one contains different fields, or do they have some records per file with all of the fields in each file? Do you ever select subsets of rows (records) based on criteria (e.g. select the rows with field A > 5)? and then do something, or do you just select fields A, B, C with all of the records (a...
https://stackoverflow.com/ques... 

Approximate cost to access various caches and main memory?

...xample, check page 22 for some timings & cycles for example). Additionally, this page has some details on clock cycles etc. The second link served the following numbers: Core i7 Xeon 5500 Series Data Source Latency (approximate) [Pg. 22] local L1 CACHE hit, ...
https://stackoverflow.com/ques... 

What's the bad magic number error?

...the pyc file or trying to run a pyc from a different version of python (usually later) than your interpreter. If they are your pyc files, just delete them and let the interpreter re-compile the py files. On UNIX type systems, that could be something as simple as: rm *.pyc or: find . -name '*.py...
https://stackoverflow.com/ques... 

Dynamically load JS inside JS [duplicate]

...se my own implementation of it like: jQuery.loadScript = function (url, callback) { jQuery.ajax({ url: url, dataType: 'script', success: callback, async: true }); } and use it like: if (typeof someObject == 'undefined') $.loadScript('url_to_someScript.js...