Xin(Khalil) Zhang

@JoshBarr, thanks for your work. I have one question for you, can we customize the listening port (read it from `process.env.PORT` or some other means) as sometimes it will conflict...

fix: add more type definition for mysql.get method

1

##### Checklist - [x] npm test passes - [x] commit message follows commit guidelines ##### Affected core subsystem(s) ##### Description of change

In the method of baidu.dom.opacity, and it set the opacity using filter with 'xxxxx(opacity__:**xxx' instead of 'xxxxx(opacity**=__'. The problem is that if I set the opacity with this method, but...