英文作文批改怎么搭建

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>作文批改系统</title>
</head>
<body>
    <form id="uploadForm">
        <input type="file" name="essay" accept=".txt,.doc,.docx">
        <button type="submit">上传</button>
    </form>
    <div id="results"></div>

    <script>
        document.getElementById('uploadForm').addEventListener('submit', function(event) {
            event.preventDefault();
            const formData = new FormData(this);
            fetch('/api/grade', {
                method: 'POST',
                body: formData
            }).then(response => response.json())
              .then(data => {
                  document.getElementById('results').innerText = data.feedback;
              });
        });
    </script>
</body>
</html>

from flask import Flask, request, jsonify
import spacy

app = Flask(__name__)
nlp = spacy.load("en_core_web_sm")

@app.route('/api/grade', methods=['POST'])
def grade_essay():
    file = request.files['essay']
    text = file.read().decode('utf-8')
    doc = nlp(text)
    
    errors = []
    for token in doc:
        if token.is_alpha and not token.is_stop and not token.is_punct:
            if token.pos_ not in ['NOUN', 'VERB', 'ADJ', 'ADV']:
                errors.append(f"Incorrect part of speech: {token.text}")
    
    feedback = "\n".join(errors)
    return jsonify({'feedback': feedback})

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