JavaScript 可以用于统计软件下载次数,主要通过以下几个步骤实现:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Download Counter</title>
</head>
<body>
<button id="downloadBtn">Download Software</button>
<p>Downloads: <span id="downloadCount">0</span></p>
<script>
document.getElementById('downloadBtn').addEventListener('click', function() {
fetch('/api/increment-download', { method: 'POST' })
.then(response => response.json())
.then(data => {
document.getElementById('downloadCount').textContent = data.count;
})
.catch(error => console.error('Error:', error));
});
</script>
</body>
</html>
const express = require('express');
const bodyParser = require('body-parser');
const app = express();
const port = 3000;
let downloadCount = 0; // 这里可以用数据库替代
app.use(bodyParser.json());
app.post('/api/increment-download', (req, res) => {
downloadCount += 1;
// 这里可以将 downloadCount 更新到数据库
res.json({ count: downloadCount });
});
app.listen(port, () => {
console.log(`Server running at http://localhost:${port}/`);
});
通过上述方法,可以有效地统计软件的下载次数,并确保数据的准确性和安全性。