string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%94%B9%E7%AD%BE%E6%94%B6%E4%B8%8D%E6%94%B6%E8%B4%B9%E7%94%A8%E5%91%A2 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
改签收不收费用呢
