好，是的，除非您将其部署在另一台服务器上，否则它正在本地主机上运行.是的，如果要在关闭计算机的情况下运行它，则必须在其他地方运行它.实际上，如果您想建立一个网站并使用一个数据库，那么那里提供了许多服务，这些服务提供免费托管并带有一个MySQL数据库.

Well, yes it is running of localhost unless you deployed it on another server. Yes, you have to run it somewhere else if you want it to run when your PC is turned off. In fact, if you want to make a website and use a database for it then there are many services out there that provide free hosting and come with a MySQL database.

一个例子是freehosting.com而无意做广告.快速研究会为您显示许多替代方案.

An example would be freehosting.com without intending to do advertisement. A quick research would show you many alternatives.