js get请求 参数乱码

// 使用 JavaScript 的 encodeURIComponent 函数对参数进行编码
const param = "中文";
const encodedParam = encodeURIComponent(param);

// 构建完整的 URL
const url = `https://example.com/api?param=${encodedParam}`;

// 发送 GET 请求
fetch(url)
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));

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

app.get('/api', (req, res) => {
  const param = decodeURIComponent(req.query.param);
  console.log(param); // 输出: 中文
  res.send({ message: 'Success' });
});

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