大约有 36,000 项符合查询结果（耗时：0.0476秒） [XML]
Why is printing to stdout so slow? Can it be sped up?
...
I ran your file writing test on my machine, and with buffering, it also 0.05s here for 100,000 lines.
However, with the above modifications to write unbuffered, it takes 40 seconds to write only 1,000 lines to disk. I gave up waiting for 100,000 lines to write, but extrapolating from the previou...
How to remove the querystring and get only the url?
...
+100
You can use strtok to get string before first occurence of ?
$url = strtok($_SERVER["REQUEST_URI"], '?');
strtok() represents the ...
How to write a cron that will run a script every day at midnight?
...how to use it on Ubuntu. Your crontab line will look something like this:
00 00 * * * ruby path/to/your/script.rb
(00 00 indicates midnight--0 minutes and 0 hours--and the *s mean every day of every month.)
Syntax:
mm hh dd mt wd command
mm minute 0-59
hh hour 0-23
dd day of month 1-...
Android: How to change CheckBox size?
...
answered Jan 28 '10 at 7:36
moraesmoraes
11.8k77 gold badges4141 silver badges5858 bronze badges
...
Shading a kernel density plot between two points.
...x(which(dens$x < q95))
with(dens, polygon(x=c(x[c(x1,x1:x2,x2)]), y= c(0, y[x1:x2], 0), col="gray"))
Output (added by JDL)
share
|
improve this answer
|
follow
...
Determine version of Entity Framework I am using?
...e two versions 1 and 2? And version 2 is referred to as Entity Framework 4.0?
10 Answers
...
Selecting data frame rows based on partial string match in a column
...
150
I notice that you mention a function %like% in your current approach. I don't know if that's a r...
Get free disk space
...
|
edited Sep 20 '11 at 15:25
Superman
3,48655 gold badges3030 silver badges4545 bronze badges
...
How to convert a std::string to const char* or char*?
...
1091
If you just want to pass a std::string to a function that needs const char* you can use
std:...
Turn a number into star rating display using jQuery and CSS
...tars, span.stars span {
display: block;
background: url(stars.png) 0 -16px repeat-x;
width: 80px;
height: 16px;
}
span.stars span {
background-position: 0 0;
}
Image
(source: ulmanen.fi)
Note: do NOT hotlink to the above image! Copy the file to your own server and u...