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【PM干货】2015年阿里业务型PM笔试题 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...考后再一回想，其实搜索成长log是个很好的切入点，但是考试的时候头脑一片空白没有想起来。
4、最近新闻经常出现飞机失事，假如你是XXX航空公司的工作人员，你如何将降低负面影响，同时实现利益最大化。
我认为这是一...
How to ignore xargs commands if stdin input is empty?
...gt;, -n <#args>, -i, and -I <string>:
ls /empty_dir/ | xargs -n10 chown root # chown executed every 10 args or fewer
ls /empty_dir/ | xargs -L10 chown root # chown executed every 10 lines or fewer
ls /empty_dir/ | xargs -i cp {} {}.bak # every {} is replaced with the args from one input...
滑动分页使用指导 · App Inventor 2 中文网
... 搜索 滑动分页使用指导 ← 返回滑动分页组件参考 · 全部使用指导
滑动分页使用指导
滑动分页使用指导
工作原理
快...
OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...thread_t *old_ioth;
easy_listen_t *next;
//有多少个IO线程就有多少个watcher, 每个watcher都监听fd上的EV_READ和EV_CLEANUP事件
ev_io read_watcher[0];
};
easy_connection_add_listen：
从eio->pool中为easy_listen_t和io线程个...
联网 App 第 1 课：连通测试，把一句话存到服务器再读回来（附 .aia 源码）...
...保存到自己搭的服务器，再从服务器读回来，并显示用了多少毫秒。连不上时告诉你该检查什么。
下载 NetHello.aia 返回联网 App 专题
这一课学什么
服务地址：网络微数据库把数据发到哪里，由「服务地址...
Get most recent file in a directory on Linux
...
ls -t | head -n1
This command actually gives the latest modified file in the current working directory.
share
|
improve this answer...
Difference between namespace in C# and package in Java
...t statement or fully-qualified name to mention the specific type.
package n1.n2;
class A {}
class B {}
or
package n1.n2;
class A {}
Another source file:
package n1.n2;
class B {}
Package cannot be nested. One source file can only have one package statement.
C#
Namespaces are...
How to upgrade all Python packages with pip?
...list --outdated --format=freeze | grep -v '^\-e' | cut -d = -f 1 | xargs -n1 pip install -U
Note: there are infinite potential variations for this. I'm trying to keep this answer short and simple, but please do suggest variations in the comments!
In older version of pip, you can use this instead...
Bulk insert with SQLAlchemy ORM
..._orm_bulk_insert(n=100000):
init_sqlalchemy()
t0 = time.time()
n1 = n
while n1 > 0:
n1 = n1 - 10000
DBSession.bulk_insert_mappings(
Customer,
[
dict(name="NAME " + str(i))
for i in xrange(min(10000, n1))
...
Highlight the difference between two strings in PHP
... $diffValues = array();
$diffMask = array();
$dm = array();
$n1 = count($from);
$n2 = count($to);
for ($j = -1; $j < $n2; $j++) $dm[-1][$j] = 0;
for ($i = -1; $i < $n1; $i++) $dm[$i][-1] = 0;
for ($i = 0; $i < $n1; $i++)
{
for ($j = 0; $j < $n2;...