大约有 47,000 项符合查询结果（耗时：0.1060秒） [XML]
Which MySQL data type to use for storing boolean values
...
For MySQL 5.0.3 and higher, you can use BIT. The manual says:
As of MySQL 5.0.3, the BIT data type is used to store bit-field
values. A type of BIT(M) enables storage of M-bit values. M can range
from 1 to 64.
Otherwise, according to t...
How does RegexOptions.Compiled work?
...
304
RegexOptions.Compiled instructs the regular expression engine to compile the regular expression...
Where is the WPF Numeric UpDown control?
...
50
Simply use the IntegerUpDown control in the xtended wpf toolkit
You can use it like this:
Add ...
Show percent % instead of counts in charts of categorical variables
... geom_bar(aes(y = (..count..)/sum(..count..))) +
## version 3.0.0
scale_y_continuous(labels=percent)
Here's a reproducible example using mtcars:
ggplot(mtcars, aes(x = factor(hp))) +
geom_bar(aes(y = (..count..)/sum(..count..))) +
scale_y_continuous(labels...
Get application version name using adb
...
arbuzarbuz
2,09011 gold badge1515 silver badges1414 bronze badges
...
Get decimal portion of a number with JavaScript
...
Use 1, not 2.
js> 2.3 % 1
0.2999999999999998
share
|
improve this answer
|
follow
|
...
Sass negative variable value?
...
Try it like this
margin: 0 (-$pad) 20px (-$pad);
share
|
improve this answer
|
follow
|
...
What are the options for storing hierarchical data in a relational database? [closed]
...ttle for one or the other especially if there are more than, say, a lousy 100,000 nodes or so. Using the push stack method can take a whole day to do the conversion on what MLM'ers would consider to be a small million node hierarchy.
I thought I'd give Celko a bit of competition by coming up with ...
Matplotlib: “Unknown projection '3d'” error
...
First off, I think mplot3D worked a bit differently in matplotlib version 0.99 than it does in the current version of matplotlib.
Which version are you using? (Try running: python -c 'import matplotlib; print matplotlib."__version__")
I'm guessing you're running version 0.99, in which case you'll...
Finding Number of Cores in Java
... |
edited Nov 17 '11 at 9:03
answered Jan 21 '11 at 13:58
d...