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领域驱动设计系列（三）:事件驱动上 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...nt.DeActive();
_emailService.SendEmail();
}
}
但是，问题来了，如果后来我们要说，如果设备坏了，我们要更改可用库存的数量，这时候我们是不是要在这里修改代码而引入IInventoryService? 后来如果经理说设备坏了你们尽然...
Anonymous recursive PHP functions
...
In order for it to work, you need to pass $factorial as a reference
$factorial = function( $n ) use ( &$factorial ) {
if( $n == 1 ) return 1;
return $factorial( $n - 1 ) * $n;
};
print $factorial( 5 );
...
How do I Sort a Multidimensional Array in PHP [duplicate]
... // How will we compare this round?
list($column, $sortOrder, $projection) = $criterion;
$sortOrder = $sortOrder === SORT_DESC ? -1 : 1;
// If a projection was defined project the values now
if ($projection) {
$lhs = call_user_...
CMake使用教程 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ctions/CMakeFiles/MathFunctions.dir/all] Error 2
make: *** [all] Error 2
问题分析：
首先看build/makefile文件，关于MakeTable有如下规则：
# Build rule for target.
MakeTable: cmake_check_build_system
$(MAKE) -f CMakeFiles/Makefile2 MakeTable
.PHONY : MakeTable
再看Makefile2...
Rank function in MySQL
...rRank := @curRank + 1 AS rank
FROM person p, (SELECT @curRank := 0) r
ORDER BY age;
The (SELECT @curRank := 0) part allows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE person (id int, first_name varchar(20), age int, gender char(1));
INSERT...
How can I store my users' passwords safely?
...ion: password_hash() and password_verify(). It provides several options in order to achieve the level of password security you need (for example by specifying a "cost" parameter through the $options array)
<?php
var_dump(password_hash("my-secret-password", PASSWORD_DEFAULT));
$options = array(
...
$PHP_AUTOCONF errors on mac os x 10.7.3 when trying to install pecl extensions
...
Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
...
创建增量同步Oracle物化视图问题 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
创建增量同步Oracle物化视图问题我们采用Oracle的物化视图增量刷新机制定时将数据库A上的某个表的数据同步到另一个数据库B上。我们常用的最简单的实现步骤是这样。首先在数...我们采用Oracle的物化视图增量刷新机制定时将数...
How to set a cookie for another domain
...ow can you say this however youtube is reading cookies created by gmail in order to show their account on youtube?
– TAHA SULTAN TEMURI
Jul 8 '18 at 8:46
...
怎么往SetTimer的回调函数传递参数 - C/C++ - 清泛网 - 专注C/C++及内核技术
怎么往SetTimer的回调函数传递参数本文说明两个问题：1.windows的消息处理机制；2.怎么往SetTimer的回调函数传递参数。首先看第一个问题，我们都知道 windows是消 息驱动的...本文说明两个问题：1.windows的消息处理机制；2.怎么往SetT...