带有axios的For循环调用在运行.then响应之前返回，因此它返回一个空数组。

const axios = require('axios');

async function fetchData() {
  const urls = ['url1', 'url2', 'url3']; // 假设这是你要请求的URL列表
  const promises = urls.map(url => axios.get(url));

  try {
    const responses = await Promise.all(promises);
    const data = responses.map(response => response.data);
    return data;
  } catch (error) {
    console.error('Error fetching data:', error);
    throw error;
  }
}

fetchData().then(data => {
  console.log('All data fetched:', data);
}).catch(error => {
  console.error('Failed to fetch data:', error);
});

const axios = require('axios');

async function fetchData() {
  const urls = ['url1', 'url2', 'url3']; // 假设这是你要请求的URL列表
  const results = [];

  for (const url of urls) {
    try {
      const response = await axios.get(url);
      results.push(response.data);
    } catch (error) {
      console.error(`Error fetching ${url}:`, error);
    }
  }

  return results;
}

fetchData().then(data => {
  console.log('All data fetched:', data);
}).catch(error => {
  console.error('Failed to fetch data:', error);
});