Nodejs using the express framework demo

Realize one of the novice tutorials demo

rookie Express-demo

Reference article

There will be a problem of garbled code

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It's said on the Internet res.writeheader('Content-Type', 'text/html;chartset=utf-8') This is someone else node.js Native , Now it's in use express The frame is not easy to use .

There is also a saying   The statement - Solution

  What is this , I node.js I don't really understand it at the beginning , Can you tell me what this is .sublime