string(283) "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%E4%B8%80%E7%9B%B4%E7%A0%8D%E4%B8%8D%E6%88%90%E5%8A%9F%E6%80%8E%E4%B9%88%E5%9B%9E%E4%BA%8B => Failed to connect to 14.18.117.71 port 38164: Connection refused"
拼多多一直砍不成功怎么回事
