Form <td>获取post方法的数据

<form method="post" action="submit.php">
  <table>
    <tr>
      <td><input type="text" name="username"></td>
    </tr>
    <tr>
      <td><input type="password" name="password"></td>
    </tr>
    <tr>
      <td><input type="submit" value="Submit"></td>
    </tr>
  </table>
</form>

$username = $_POST['username'];
$password = $_POST['password'];

from flask import Flask, request

app = Flask(__name__)

@app.route('/submit', methods=['POST'])
def submit():
    username = request.form['username']
    password = request.form['password']
    return 'Username: ' + username + ', Password: ' + password

if __name__ == '__main__':
    app.run()

const express = require('express');
const app = express();

app.use(express.urlencoded({ extended: true }));

app.post('/submit', (req, res) => {
  const username = req.body.username;
  const password = req.body.password;
  res.send('Username: ' + username + ', Password: ' + password);
});

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});