大约有 30,000 项符合查询结果（耗时：0.0380秒） [XML]
How can I check if an argument is defined when starting/calling a batch file?
...lf contains double quotes. "%1"=="" will error with an "unexpected at this time" message.
– tekumara
Feb 8 '12 at 1:03
2
...
How can I read a large text file line by line using Java?
... @JiewMeng SO I would suspect something else you are doing is taking time. Can you try just reading the lines of the file and nothing else.
– Peter Lawrey
Nov 8 '13 at 0:22
4...
Priority queue in .Net [closed]
...The FindMin and
FindMax operations, and the indexer’s get-accessor, take time O(1). The DeleteMin,
DeleteMax, Add and Update operations, and the indexer’s set-accessor, take time
O(log n). In contrast to an ordinary priority queue, an interval heap offers both minimum
and maximum operations with...
WebSockets protocol vs HTTP
...tion setup latency is probably a bigger factor than the size or processing time for each request.
2) Why was it implemented instead of updating HTTP protocol?
There are efforts to re-engineer the HTTP protocol to achieve better performance and lower latency such as SPDY, HTTP 2.0 and QUIC. This wi...
Add timestamps to an existing table
I need to add timestamps ( created_at & updated_at ) to an existing table. I tried the following code but it didn't work.
...
Serving gzipped CSS and JavaScript from Amazon CloudFront via S3
...che your page, since it'll only work if your code is run dynamically every time a user loads the page (which of course mine is).
– Donald Jenkins
Apr 1 '11 at 6:57
...
Webfonts or Locally loaded fonts?
...
I think you've addressed the load times very well in your question. From my perspective, there are a few sources that should be added to the list, and a few other considerations that should be examined to get a full view of the options.
Some other reputabl...
What is the difference between procedural programming and functional programming? [closed]
...on
procedure_to_add_one is a procedure
Even if you run the function five times, every time it will return 2
If you run the procedure five times, at the end of fifth run it will give you 6.
share
|
...
“is” operator behaves unexpectedly with integers
...h is guaranteed to be unique and constant for this object
during its lifetime. Two objects with non-overlapping lifetimes may
have the same id() value.
Note that the fact that the id of an object in CPython (the reference implementation of Python) is the location in memory is an implementation...
Binding arrow keys in JS/jQuery
... HotKeys has a very major bug which causes events to get executed multiple times if you attach more than one hotkey to an element. Just use plain jQuery.
$(element).keydown(function(ev) {
if(ev.which == $.ui.keyCode.DOWN) {
// your code
ev.preventDefault();
}
});
...