大约有 40,000 项符合查询结果（耗时：0.0663秒） [XML]
iPhone: How to get current milliseconds?
...OS, you should probably get comfortable with them.
– Ampers4nd
Jan 13 '14 at 20:49
5
I've been us...
Detecting syllables in a word
...sions, but not all syllable divisions are valid hyphenation points. For example, hyphens aren't (usually) used within a letter or two of either end of a word. I also believe the TeX patterns were tuned to trade off false negatives for false positives (never put a hyphen where it doesn't belong, ev...
Changing UIImage color
...
backgroundRect.origin.y = 0;
CGFloat r,g,b,a;
[color getRed:&r green:&g blue:&b alpha:&a];
CGContextSetRGBFillColor(ctx, r, g, b, a);
CGContextFillRect(ctx, backgroundRect);
CGRect imageRect;
imageRect.size = image.size;
imageRect.origin.x = (backgr...
Programmatically Determine a Duration of a Locked Workstation?
....OSVersion;
_is_win7 = (os_version.Platform == PlatformID.Win32NT && os_version.Version.Major == 6 && os_version.Version.Minor == 1);
}
[DllImport("wtsapi32.dll")]
private static extern Int32 WTSQuerySessionInformation(
IntPtr hServer,
[MarshalAs(...
How do I test for an empty JavaScript object?
...= 0;
// we have to do some additional check
Object.keys(obj).length === 0 && obj.constructor === Object
Note, though, that this creates an unnecessary array (the return value of keys).
Pre-ECMA 5:
function isEmpty(obj) {
for(var prop in obj) {
if(obj.hasOwnProperty(prop)) {
r...
How can I split up a Git commit buried in history?
... unneeded changes from the index and reset the working tree
git reset -p && git checkout-index -f -a
As alternative, just stash unneeded changes interactively: git stash push -p -m "tmp other changes"
Make other changes (if any) and create the new commit
git commit -m "upd something" .
...
Confused by python file mode “w+”
...rns 'somedata\n'
Note the f.seek(0) -- if you forget this, the f.read() call will try to read from the end of the file, and will return an empty string.
share
|
improve this answer
|
...
How do you increase the max number of concurrent connections in Apache?
...hive.org/web/20160415001028/http://www.genericarticles.com/mediawiki/index.php?title=How_to_optimize_apache_web_server_for_maximum_concurrent_connections_or_increase_max_clients_in_apache
ServerLimit 16
StartServers 2
MaxClients 200
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
First o...
How do I output the difference between two specific revisions in Subversion?
...vn diff -r 8979:11390 http://svn.collab.net/repos/svn/trunk/fSupplierModel.php
share
|
improve this answer
|
follow
|
...
Using arrays or std::vectors in C++, what's the performance gap?
... int * p;
std::vector<int>::iterator i;
};
int pointer_index (S & s) { return s.p[3]; }
// movq 32(%rdi), %rax
// movl 12(%rax), %eax
// ret
int vector_index (S & s) { return s.v[3]; }
// movq 8(%rdi), %rax
// movl 12(%rax), %eax
// ret
// Conclusion: Inde...