No response after running js in node.js?

  node.js, question

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That is, I wrote me these in the server.js file, and then used the Node command to run this from the terminal, but not only did I not print hello, node! , and nothing is displayed. In the browser, the host localhost:1337 also shows that our connection request has been rejected. Excuse me, Why is this? Is there anything that can be printed out by Hello, Node?

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The browser inside enters localhost:port to see. . .