大约有 40,000 项符合查询结果（耗时：0.0815秒） [XML]
How to create a drop shadow only on one side of an element?
...ent is required.
#box {
background-color: #3D6AA2;
width: 160px;
height: 90px;
position: absolute;
top: calc(10% - 10px);
left: calc(50% - 80px);
}
.box-shadow:after {
content:"";
position:absolute;
width:100%;
bottom:1px;
z-index:-1;
...
Geometric Mean: is there a built-in?
...ositive values.
gm_mean = function(x, na.rm=TRUE){
exp(sum(log(x[x > 0]), na.rm=na.rm) / length(x))
}
Thanks to @ben-bolker for noting the na.rm pass-through and @Gregor for making sure it works correctly.
I think some of the comments are related to a false-equivalency of NA values in the d...
How to check if a string “StartsWith” another string?
...
answered Mar 14 '09 at 20:19
Christian C. SalvadóChristian C. Salvadó
688k171171 gold badges886886 silver badges826826 bronze badges
...
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
...
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
...
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:...