string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%AF%9B%E6%88%88%E5%B9%B3%E9%AB%98%E5%85%89%E7%94%A8%E5%9C%A8%E5%93%AA%E4%B8%AA%E6%AD%A5%E9%AA%A4 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
毛戈平高光用在哪个步骤
