大约有 42,000 项符合查询结果（耗时：0.0555秒） [XML]
C# - how to determine whether a Type is a number
...Byte,
SByte, Int16, UInt16, Int32, UInt32,
Int64, UInt64, Char, Double,and
Single.
Taking Guillaume's solution a little further:
public static bool IsNumericType(this object o)
{
switch (Type.GetTypeCode(o.GetType()))
{
case TypeCode.Byte:
case TypeCode.SByte:
case Typ...
xcopy file, rename, suppress “Does xxx specify a file name…” message
This seems pretty simple and maybe I'm just overlooking the proper flag , but how would I, in one command, copy a file from one directory to another and rename it in the destination directory? Here's my command:
...
Is Chrome's JavaScript console lazy about evaluating arrays?
...!)
There appears to be some debate regarding just how much of a bug it is and whether it's fixable. It does seem like bad behavior to me. It was especially troubling to me because, in Chrome at least, it occurs when the code resides in scripts that are executed immediately (before the page is loa...
How to deal with cyclic dependencies in Node.js
I've been working with nodejs lately and still getting to grips with the module system so apologies if this is an obvious question. I want code roughly like the following below:
...
WebKit issues with event.layerX and event.layerY
... deprecation warning on an event (at least in my opinion). One mousemove handler and your console explodes. :)
Here's a recent jQuery ticket: http://bugs.jquery.com/ticket/10531
UPDATE: This is fixed now if you upgrade to jQuery 1.7.
Please note that if upgrading jQuery doesn't fix the issue for...
How do I send a file as an email attachment using Linux command line?
... that uses mysqldump to back up each of my MySQL databases to .sql files and packages them together as a compressed .tar file. The next step I want to accomplish is to send that tar file through email to a remote email server for safekeeping. I've been able to send the raw script in the body an ...
What's the simplest way to test whether a number is a power of 2 in C++?
...will want to check for it explicitly.
http://www.graphics.stanford.edu/~seander/bithacks.html has a large collection of clever bit-twiddling algorithms, including this one.
share
|
improve this ans...
Are tar.gz and tgz the same thing?
I created .tgz file with tar czvf file command.then I ended up with a tgz file. I want to know the difference between it and tar.gz.
...
Why is it string.join(list) instead of list.join(string)?
...e any iterable can be joined (e.g, list, tuple, dict, set), but the result and the "joiner" must be strings.
For example:
'_'.join(['welcome', 'to', 'stack', 'overflow'])
'_'.join(('welcome', 'to', 'stack', 'overflow'))
'welcome_to_stack_overflow'
Using something else than strings will raise t...
Get selected element's outer HTML
...
2014 Edit : The question and this reply are from 2010. At the time, no better solution was widely available. Now, many of the other replies are better : Eric Hu's, or Re Capcha's for example.
This site seems to have a solution for you :
jQuery: oute...