string(328) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8B%BC%E5%A4%9A%E5%A4%9A%E7%A0%8D%E4%BB%B7%E7%A0%8D%E5%88%B0%E9%9B%B6%E5%85%83%E7%84%B6%E5%90%8E%E5%8F%98%E6%88%90%E4%BA%86%E9%82%80%E8%AF%B7%E5%A5%BD%E5%8F%8B => Failed to connect to 14.116.215.7 port 38225: Connection refused"
拼多多砍价砍到零元然后变成了邀请好友
