大约有 40,000 项符合查询结果（耗时：0.0741秒） [XML]
std::string to float or double
...ouble temp = ::atof(num.c_str());
Does it for me, it is a valid C++ syntax to convert a string to a double.
You can do it with the stringstream or boost::lexical_cast but those come with a performance penalty.
Ahaha you have a Qt project ...
QString winOpacity("0.6");
double temp = winOpacity...
jQuery get textarea text
...
Normally, it's the value property
testArea.value
Or is there something I'm missing in what you need?
share
|
improve this an...
Comment the interface, implementation or both?
I imagine that we all (when we can be bothered!) comment our interfaces. e.g.
9 Answers
...
How do I create a new class in IntelliJ without using the mouse?
...rything is possible with keyboard only with the debugger. CrazyCoder, i challenge you to unplug your keyboard and work with IntelliJ!!!
– JavaRocky
Feb 12 '10 at 4:31
...
Image fingerprint to compare similarity of many images
...d approach for improved comparison quality
A luminosity histogram (especially one that is separated into RGB components) is a reasonable fingerprint for an image - and can be implemented quite efficiently. Subtracting one histogram from another will produce a new historgram which you can process t...
What does an underscore in front of an import statement mean?
...initialization), use the blank identifier as explicit package name:
import _ "lib/math"
In sqlite3
In the case of go-sqlite3, the underscore import is used for the side-effect of registering the sqlite3 driver as a database driver in the init() function, without importing any other functions:
sql.R...
How do you display code snippets in MS Word preserving format and syntax highlighting?
... Please note tath this requires open/libre office to be installed on your machine.
– BetaRide
Oct 10 '13 at 6:06
16
...
Cross-platform way of getting temp directory in Python
...d() # reads data back from the file
f.close() # temporary file is automatically deleted here
For completeness, here's how it searches for the temporary directory, according to the documentation:
The directory named by the TMPDIR environment variable.
The directory named by the TEMP environment v...
Python SQL query string formatting
...l query string. When I'm debugging
my application I'd like to log to file all the sql query strings, and it is
important that the string is properly formated.
...
Differences between detach(), hide() and remove() - jQuery
... @comecme: If you have bound an event like a click handler to the span, call remove(), and attach it again, the binding will be gone and clicking the span will do nothing. If you call detach() and reattach, the binding stays and the click handler keeps working.
– lambshaanxy...