在http本机get方法typescript上传递参数数组列表

http://example.com/api?param1=value1&param2=value2&param3=value3

const params = {
  param1: 'value1',
  param2: 'value2',
  param3: ['value3', 'value4', 'value5']
};

const queryString = Object.entries(params)
  .map(([key, value]) => {
    if (Array.isArray(value)) {
      return value.map(v => `${encodeURIComponent(key)}=${encodeURIComponent(v)}`).join('&');
    }
    return `${encodeURIComponent(key)}=${encodeURIComponent(value)}`;
  })
  .join('&');

const url = `http://example.com/api?${queryString}`;

fetch(url)
  .then(response => response.json())
  .then(data => {
    // 处理响应数据
  })
  .catch(error => {
    // 处理错误
  });

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

app.get('/api', (req, res) => {
  const param1 = req.query.param1;
  const param2 = req.query.param2;
  const param3 = req.query.param3 ? req.query.param3.split(',') : [];

  // 处理参数数组列表
});

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