在帖子创建过程中禁止所有网站用户出现在帖子表单中

document.getElementById('postForm').addEventListener('submit', function(event) {
    var content = document.getElementById('postContent').value;
    if (containsForbiddenWords(content)) {
        alert('帖子内容包含禁止的词汇！');
        event.preventDefault();
    }
});

function containsForbiddenWords(content) {
    var forbiddenWords = ['用户', '网站', '表单'];
    for (var i = 0; i < forbiddenWords.length; i++) {
        if (content.includes(forbiddenWords[i])) {
            return true;
        }
    }
    return false;
}

const express = require('express');
const app = express();
app.use(express.urlencoded({ extended: true }));

app.post('/submitPost', (req, res) => {
    const content = req.body.postContent;
    if (containsForbiddenWords(content)) {
        return res.status(400).send('帖子内容包含禁止的词汇！');
    }
    // 处理合法的帖子内容
    res.status(200).send('帖子提交成功！');
});

function containsForbiddenWords(content) {
    const forbiddenWords = ['用户', '网站', '表单'];
    for (let word of forbiddenWords) {
        if (content.includes(word)) {
            return true;
        }
    }
    return false;
}

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