npm install
npm start
access the address that you defined:
like this:
use http method of post
results：
html segment:
<p>aa</p>
<image src='https://avatars3.githubusercontent.com/u/22659021?s=460&u=6ea49640da101e742d997a8647150374955aa7d4&v=4'></image>
<p>bb</p>
<p>cc</p>