使用node.js和wget，等待下载结束

const { spawn } = require('child_process');

// 下载文件的URL
const url = 'http://example.com/file.zip';

// 执行wget命令下载文件
const wget = spawn('wget', [url]);

// 监听子进程的输出
wget.stdout.on('data', (data) => {
  console.log(`stdout: ${data}`);
});

// 监听子进程的错误输出
wget.stderr.on('data', (data) => {
  console.error(`stderr: ${data}`);
});

// 监听子进程的退出事件
wget.on('close', (code) => {
  console.log(`wget process exited with code ${code}`);
});

const { spawn } = require('child_process');

function downloadFile(url) {
  return new Promise((resolve, reject) => {
    const wget = spawn('wget', [url]);

    wget.on('close', (code) => {
      if (code === 0) {
        resolve();
      } else {
        reject(new Error(`wget process exited with code ${code}`));
      }
    });
  });
}

async function main() {
  const url = 'http://example.com/file.zip';

  try {
    console.log('Start downloading...');
    await downloadFile(url);
    console.log('Download finished.');
  } catch (error) {
    console.error('Download failed:', error);
  }
}

main();