大约有 740 项符合查询结果（耗时：0.0111秒） [XML]
An efficient way to transpose a file in Bash
...6 9
1 4 7 10
2 5 8 11
Performance against Perl solution by Jonathan on a 10000 lines file
$ head -5 file
1 0 1 2
2 3 4 5
3 6 7 8
4 9 10 11
1 0 1 2
$ wc -l < file
10000
$ time perl test.pl file >/dev/null
real 0m0.480s
user 0m0.442s
sys 0m0.026s
$ time awk -f test.awk file >...
jQuery .hasClass() vs .is()
...ng code from the Firebug console:
function usingIs() {
for (var i=0; i<10000;i++) {
$('div#example-0').is('.test');
}
}
function usingHas(){
for (var i=0; i<10000;i++) {
$('div#example-0').hasClass('test');
}
}
usingIs();
usingHas();
I got:
usingIs: 3191.663ms
usingHas: 2362.523ms
...
Redis消息通知系统的实现 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...不断的插入，代码如下：
<?php
for ($msgid = 1; $msgid <= 1000000; $msgid++) {
$redis->sAdd('usr:<USRID>:msg', $msgid);
}
?>
说明：这里我使用了SET数据类型，当然你也可以视需求换成LIST或者ZSET。
Redis的速度是很快的，但是借助PIPELINE，...
How to break lines at a specific character in Notepad++?
...ing to location B1:
A2 =LEFT(B1,FIND(",",B1)-1)
B2 =MID(B1,FIND(",",B1)+1,10000)
Select A2 and B2, copy the code to successive cells (by dragging):
A3 =LEFT(B2,FIND(",",B2)-1)
B3 =MID(B2,FIND(",",B2)+1,10000)
When you get #VALUE! in the last cell of column A replace it with the previous rows B...
.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
...5000 avgt 30 6.884 ▒ 0.130 us/op
c.a.p.SO29378922.preSize 10000 avgt 30 13.147 ▒ 0.199 us/op
c.a.p.SO29378922.preSize 100000 avgt 30 159.977 ▒ 5.292 us/op
c.a.p.SO29378922.resize 1 avgt 30 0.019 ▒ 0.000 us/op
c.a.p.SO29378922.resize ...
What is a CSRF token ? What is its importance and how does it work?
... their page a request like http://www.mybank.com/transfer?to=123456;amount=10000 (where 123456 is the number of their Cayman Islands account and 10000 is an amount that you previously thought you were glad to possess).
You retrieved that www.cute-cat-pictures.org page, so your browser will make that...
Node.js vs .Net performance
...stics;
namespace HttpBench
{
class Program
{
private int TotalCount = 100000;
private int ConcurrentThreads = 1000;
private int failedCount;
private int totalBytes;
private int totalTime;
private int completedCount;
private static object lockObj = new object();
/// ...
Get selected option from select element
...;
<option value="1000">1000</option>
<option value="10000">10000</option>
</select>
To capture via jQuery you can do something like so:
$('#cycles_list').change(function() {
var mylist = document.getElementById("cycles_list");
iterations = mylist.op...
Generate 'n' unique random numbers within a range [duplicate]
...ds it), but not the whole range. For example: %timeit random.sample(xrange(10000), 3) = 4.92 µs per loop, %timeit random.sample(range(10000), 3) = 126 µs per loop
– gaborous
May 16 '15 at 19:51
...
Creating a zero-filled pandas data frame
...rame(np.zeros_like(orig_df), index=orig_df.index, columns=orig_df.columns)
10000 loops, best of 3: 60.2 µs per loop
Compare to:
In [4]: %timeit d = pd.DataFrame(0, index = np.arange(10), columns=columns)
10000 loops, best of 3: 110 µs per loop
In [5]: temp = np.zeros((10, 10))
In [6]: %timeit ...