大约有 19,000 项符合查询结果（耗时：0.0269秒） [XML]
How to import a module given the full path?
...get the error "SystemError: Parent module 'mymodule' not loaded, cannot perform relative import". So you need to bind the name before you load it. The reason for this is the fundamental invariant of the relative import system: "The invariant holding is that if you have sys.modules['spam'] and sys.mo...
What is the use of ObservableCollection in .net?
...handler to do some additional processing. This may be changing a UI or performing some other operation.
The code below doesn't really do anything but demonstrates how you'd attach a handler in a class and then use the event args to react in some way to the changes. WPF already has many operations...
Does MongoDB's $in clause guarantee order
...sults
{ "$sort": { "weight": 1 } }
])
So that would be the expanded form. What basically happens here is that just as the array of values is passed to $in you also construct a "nested" $cond statement to test the values and assign an appropriate weight. As that "weight" value reflects the ord...
Random data in Unit Tests?
...dsyme/archive/2008/08/09/fscheck-0-2.aspx
These tools will take your well-formed spec as input and automatically generate as many unit tests as you want, with automatically generated data. They use "shrinking" strategies (which you can tweak) to find the simplest possible test case to break your co...
Passing base64 encoded strings in URL
...e64, the original data could be binary or anything, but it is encoded in a form that can be transmitted easily using simple protocols.
– Thiyagaraj
Sep 3 '09 at 19:42
3
...
How to compare two Dates without the time portion?
...ppens at the start of the day... so a clock would read 23:59:58, 23:59:59, 01:00:00, 01:00:01 etc.
– Jon Skeet
Sep 19 '12 at 12:21
8
...
How can I set the request header for curl?
...imes:
curl -H "Accept-Charset: utf-8" -H "Content-Type: application/x-www-form-urlencoded" http://www.some-domain.com
share
|
improve this answer
|
follow
|
...
What does the term “porcelain” mean in Git?
... meant to be parsed.
--porcelain
Give the output in an easy-to-parse format for scripts. This is similar to the short output, but will remain stable across git versions and regardless of user configuration. See below for details.
The thread mentioned above details:
This is my fault, to s...
Is there an MD5 Fixed Point where md5(x) == x?
Is there a fixed point in the MD5 transformation, i.e. does there exist x such that md5(x) == x ?
7 Answers
...
Why is 1/1/1970 the “epoch time”?
...an represent dates up to 2038-1-19, on which date it will wrap around to 1901-12-13.
share
|
improve this answer
|
follow
|
...