string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E4%B9%88%E5%85%8B%E6%9C%8D%E6%80%95%E9%BB%91%E7%9A%84%E6%81%90%E6%83%A7 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
怎么克服怕黑的恐惧
