大约有 1,100 项符合查询结果（耗时：0.0172秒） [XML]
Normalizing mousewheel speed across browsers
...
var o = e.originalEvent,
d = o.detail, w = o.wheelDelta,
n = 225, n1 = n-1;
// Normalize delta
d = d ? w && (f = w/d) ? d/f : -d/1.35 : w/120;
// Quadratic scale if |d| > 1
d = d < 1 ? d < -1 ? (-Math.pow(d, 2) - n1) / n : d : (Math.pow(d, 2) + n1) / n;
// Delta *should* n...
iOS UI系列 (一) ：Auto Layout 高度三等分 - 更多技术 - 清泛网 - 专注C/C++及内核技术
iOS UI系列 (一) ：Auto Layout 高度三等分首先我们创建一个Single View Application然后我们向StoryBoard的ViewController 添加3个UIView, 设置不同的背景色，我们的目的是让这...首先我们创建一个Single View Application
然后我们向StoryBoard的ViewContro...
How do I break out of a loop in Perl?
...e examples all print the first 2 lines of the input:
echo 1 2 3 4 | xargs -n1 | perl -ne 'last if $. == 3; print;'
echo 1 2 3 4 | xargs -n1 | perl -ne 'last LINE if $. == 3; print;'
echo 1 2 3 4 | xargs -n1 | perl -pe 'last if $. == 3;'
echo 1 2 3 4 | xargs -n1 | perl -pe 'last LINE if $. == 3;'
Al...
Make xargs execute the command once for each line of input
...
@Wernight: "-n1" does not give 1 invocation per input line. maybe your input line was too long. demo: echo "foo bar" | xargs -n1 echo. hence if you pipe in stuff like 'ls', it won't handle spaces well.
– gatoatigrado...
Naming returned columns in Pandas aggregate function? [duplicate]
...es via assign before doing the aggregation:
data.assign(
f=data['column1'],
mean=data['column2'],
std=data['column2']
).groupby('Country').agg(dict(f=sum, mean=np.mean, std=np.std)).reset_index()
(Using reset_index turns 'Country', 'f', 'mean', and 'std' all into regular columns with ...
Convert PDF to clean SVG? [closed]
... start "" /D "%_work_dir%" /W "%_inkscape_cmd%" --without-gui --file="%~n1.%_work_x1%" --export-dpi=300 --export-plain-svg="%~n1.%_work_x2%"
) ELSE (
echo End of output
)
echo.
GOTO :eof
:: ===== INKSCAPE REFERENCE =====
:: print inkscape help
REM "%_inkscape_cmd%" --help > "%~dp0\inks...
智能手机图形解锁有多少种可能 - 创意 - 清泛网 - 专注C/C++及内核技术
智能手机图形解锁有多少种可能琢磨这个问题很久，今天还用matlab算了算，到后来才发现自己漏掉了一些情况，如下图中绿色的两幅，24136和654192都是可行的，也就是说：这...琢磨这个问题很久，今天还用matlab算了算，到后来才...
Sql server默认的端口是多少？如何开启远程连接？ - 更多技术 - 清泛网 - ...
Sql server默认的端口是多少？如何开启远程连接？默认是1433，可以在配置管理器中查看：需要开放1433端口，可以参考《Windows、Linux开放指定端口》。另外，开启远程连接还需要启用TCP IP，...默认是1433，可以在配置管理器中查看...
Hiding user input on terminal in Linux script
... (using andreas' read -s solution):
unset password;
while IFS= read -r -s -n1 pass; do
if [[ -z $pass ]]; then
echo
break
else
echo -n '*'
password+=$pass
fi
done
Without being fancy
echo "Please enter your username";
read username;
echo "Please enter your password";
stty...
Insert a line at specific line number with sed or awk
...'
sed: 1: "2i1.5": command i expects \ followed by text
$ seq 3|sed $'2i\\\n1.5'
1
1.52
3
$ seq 3|sed $'2i\\\n1.5\n'
1
1.5
2
3
To replace a line, you can use the c (change) or s (substitute) commands with a numeric address:
$ seq 3|sed $'2c\\\n1.5\n'
1
1.5
3
$ seq 3|gsed '2c1.5'
1
1.5
3
$ seq 3|s...