...change another process's working directory (again, at least on a UNIX-like OS, but as well on Windows), this call will have the subshell change its dir and exit immediately. What you want can be achieved with os.chdir() or with the subprocess named parameter cwd which changes the working directory ...

... For those who are curious what's going on, this command makes a symbolic link from the second location to the first. When the gem looks for the MySQL client library under /usr/lib, that link will resolve to the location where it's ...

...return ret; // return ret by value ,not by reference } 解决方法：+操作符包括两个操作数，应该重载为普通非成员函数。 注意重载操作符的形参数目（包括成员函数的隐式 this 指针）与操作符的操作数数目相同。对称的操作符，如算术...

... 所谓 RTO，Recovery Time Objective，它是指灾难发生后，从 IT 系统当机导致业务停顿之时开始，到 IT 系统恢复至可以支持各部门运作、恢复运营之时，此两点之间的时间段称为 RTO。 所谓 RPO，Recovery Point Objective，是指从系统和应...

涨姿势：全套支付宝系统架构（内部架构图）近期，支付宝机房故障，不仅引得网友为马云担心，还为自己在支付宝余额宝各种宝的巨款担心。 为了让大家更好的了解支付宝系统的运作，网友...近期，支付宝机房故障，不仅引...

... The "cls" and "clear" are commands which will clear a terminal (ie a DOS prompt, or terminal window). From your screenshot, you are using the shell within IDLE, which won't be affected by such things. Unfortunately, I don't think there is a way to clear the screen in IDLE. The best you could...

... Update for those using Python3: You can simply use conda install mysqlclient to install the libraries required to use MySQLdb as it currently exists. The following SO question was a helpful clue: Python 3 ImportError: No module named 'Con...

I've been using mongo on my mac os x 10.8 and suddenly yesterday at my logs appeared this warning (and when starting shell it's present too) - ...

Mac OS 可视化ssh文件传输工具（替代scp命令行）推荐Cyberduck小黄鸭推荐Cyberduck小黄鸭： 具体请参见：《Mac OS X 平台有哪些好用的 SSH 客户端？ mac 怎么登录到 linux 服务器并传输文件？》Mac 可视化 ssh 文件传输

...示区域。 有时候应用也需要能够主动引发窗口中的绘制操作，比如当窗口显示的数据改变的时候，这一般是通过InvalidateRect和 InvalidateRgn函数来完成的。InvalidateRect和InvalidateRgn把指定的区域加到窗口的Update Region中，当应用的消...