大约有 44,000 项符合查询结果(耗时:0.0328秒) [XML]

https://stackoverflow.com/ques... 

How do I list all cron jobs for all users?

... d m w user command 09,39 * * * * root [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -r -0 rm 47 */8 * * * root rsync -axE --delete --ignore-errors / /mirror/ >/dev/null 17 1 * * * root ...
https://www.tsingfun.com/it/cpp/1373.html 

C++中智能指针的设计和使用 - C/C++ - 清泛网 - 专注C/C++及内核技术

...,做了delete ip操作,所以释放了内存,不会有内存泄露的问题。 接下来的操作很自然,无需多言: ptr = rhs.ptr; // 复制U_Ptr指针 val = rhs.val; // 复制int成员 return *this; 做完赋值操作后,那么就成为如下图所示了。红色标注...
https://stackoverflow.com/ques... 

Convert php array to Javascript

How can I convert a PHP array in a format like this 17 Answers 17 ...
https://stackoverflow.com/ques... 

How to enable curl, installed Ubuntu LAMP stack?

... From http://buzznol.blogspot.com/2008/12/install-curl-extension-for-php-in.html: sudo apt-get install php5-curl After installing libcurl you should restart the web server with one of the following commands, sudo /etc/init.d/apache2 restart OR sudo service apache2 restart ...
https://bbs.tsingfun.com/thread-478-1-1.html 

C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区,为创新赋能!

...问0x4的内存地址,不crash才怪。于是,你一定会有如下的问题:1)为什么不是 13行if语句出错?f.a被初始化为空了嘛,用空指针访问成员变量为什么不crash?2)为什么会访问到了0x4的地址?靠,4是怎么出来的?3)代码中的第4行...
https://www.tsingfun.com/it/tech/1899.html 

京东618:算法让UV价值提升200%+,用智能卖场缩短购物路径 - 更多技术 - 清...

...区画像,除了界面的差异,两者在后端的处理上要解决的问题有什么不同?对推荐搜索和移动研发、交易平台研发的协作有什么样的要求? 智能卖场团队:这两者要解决的问题本质上是相同的,所以用的算法引擎是相同的。但...
https://stackoverflow.com/ques... 

How to call function of one php file from another php file and pass parameters to it?

I want to call a function in one PHP file from a second PHP file and also pass two parameters to that function. How can I do this? ...
https://stackoverflow.com/ques... 

How to execute PHP code from the command line?

I would like to execute a single php statement like if(function_exists("my_func")) echo 'function exists'; directly with the command line without having to use a seperate php file. ...
https://www.tsingfun.com/it/os_kernel/2261.html 

BIO与NIO、AIO的区别(这个容易理解) - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...于事件驱动思想来完成的,其主要想解决的是BIO的大并发问题: 在使用同步I/O的网络应用中,如果要同时处理多个客户端请求,或是在客户端要同时和多个服务器进行通讯,就必须使用多线程来处理。也就是说,将每一个客户...
https://stackoverflow.com/ques... 

What does PHP keyword 'var' do?

...'t been able to find the answer neither through web search engines, nor on php.net. Please just direct me to where I can read about this, if you haven't got time to explain. ...