大约有 15,000 项符合查询结果（耗时：0.0242秒） [XML]
Make absolute positioned div expand parent div height
...ld1 and child2 in relative divs with display:none in parent div. Say child1_1 and child2_2. Put child2_2 on top and child1_1 at the bottom.
When your jquery (or whatever) calls the absolute div, just set the according relative div (child1_1 or child2_2) with display:block AND visibility:hidden. The...
C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
...从缓冲区中取出消息
MessageBuffer.h
//MessageBuffer.h
#ifndef _MESSAGE_BUF_INCLUDE_
#define _MESSAGE_BUF_INCLUDE_
#include <pthread.h>
#define MESSAGE_COUNT 16
#define MESSAGE_LENGTH 2048
class MessageBuffer{
private:
pthread_mutex_t mutex;//访问缓冲的互斥量
pthread_...
How can I use swift in Terminal?
... Or, you could even take this one step further and add this to your ~/.bash_profile: alias swift="/Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift"
– David Beck
Jun 3 '14 at 21:33
...
Docker - how can I copy a file from an image to a host?
...
Actually, I use docker run --rm --entrypoint tar _image_ cC _img_directory_ . | tar xvC _host_directory_
– caligari
Nov 30 '17 at 11:04
add a comment...
Hidden features of Perl?
...
Cool! !!$undef_var doesn't create a warning.
– Axeman
Oct 2 '08 at 20:40
4
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Iterate keys in a C++ map
...te on the keys instead of the pairs), then take a look at Boost's transform_iterator.
[Tip: when looking at Boost documentation for a new class, read the "examples" at the end first. You then have a sporting chance of figuring out what on earth the rest of it is talking about :-)]
...
如何查看Oracle用户的SQL执行历史记录？ - 数据库(内核) - 清泛网 - 专注C/...
...e用户的SQL执行历史记录？select * from v$sqlarea t order by t LAST_ACTIVE_TIME desc注意 ：执行此语句等等一些相关的语句 必须具有DBA 的权限 虽然
select * from v$sqlarea t order by t.LAST_ACTIVE_TIME desc
注意 ：执行此语句等等一些相关的语句 必...
What's a good rate limiting algorithm?
...sages
per = 8.0; // unit: seconds
allowance = rate; // unit: messages
last_check = now(); // floating-point, e.g. usec accuracy. Unit: seconds
when (message_received):
current = now();
time_passed = current - last_check;
last_check = current;
allowance += time_passed * (rate / per);
if (...
How can I quickly sum all numbers in a file?
...ing as the awk solution in Ayman Hourieh's answer:
% perl -nle '$sum += $_ } END { print $sum'
If you're curious what Perl one-liners do, you can deparse them:
% perl -MO=Deparse -nle '$sum += $_ } END { print $sum'
The result is a more verbose version of the program, in a form that no one ...
Cast Int to enum in Java
...olean Compare(int i){return id == i;}
public static A GetValue(int _id)
{
A[] As = A.values();
for(int i = 0; i < As.length; i++)
{
if(As[i].Compare(_id))
return As[i];
}
return A.None;...