大约有 47,000 项符合查询结果（耗时：0.0358秒） [XML]
?: operator (the 'Elvis operator') in PHP
...
Mark Amery
98.9k4848 gold badges336336 silver badges379379 bronze badges
answered Jan 3 '10 at 0:24
BalusCBalusC...
Why is reading lines from stdin much slower in C++ than Python?
...tl;dr: Because of different default settings in C++ requiring more system calls.
By default, cin is synchronized with stdio, which causes it to avoid any input buffering. If you add this to the top of your main, you should see much better performance:
std::ios_base::sync_with_stdio(false);
Normall...
Adding 'serial' to existing column in Postgres
I have a small table (~30 rows) in my Postgres 9.0 database with an integer ID field (the primary key) which currently contains unique sequential integers starting at 1, but which was not created using the 'serial' keyword.
...
CSS filter: make color image with transparency white
...jP.gif" class="filter" />
</p>
First, brightness(0) makes all image black, except transparent parts, which remain transparent.
Then, invert(1) makes the black parts white.
share
|
...
Subdomain on different host [closed]
... to get the sub domain
anothersite.mydomain.com
of which the site is actually on another server then
login to Godaddy and add an A record dnsimple anothersite.mydomain.com and point the IP to the other server 98.22.11.11
And that's it.
...
Is System.nanoTime() completely useless?
...cific counter. Now consider the following case I use to measure time of a call:
15 Answers
...
Why is IntelliJ 13 IDEA so slow after upgrading from version 12?
While using IntelliJ 13 ultimate edition for a week, it just seems really slow.
20 Answers
...
Avoiding if statement inside a for loop?
I have a class called Writer that has a function writeVector like so:
4 Answers
4
...
Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
How to detect if Visual C++ Redistributable for Visual Studio 2012 is installed?
20 Answers
...
Find and replace Android studio
Is there a way to find and replace all occurrences of a word in an entire project( not just a single class using refactor -> rename) and also maintain case, either in android studio or using a command line script?
...