string(239) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=c%E7%9B%98%E5%8F%98%E6%88%90%E9%80%BB%E8%BE%91%E9%A9%B1%E5%8A%A8%E5%99%A8 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
c盘变成逻辑驱动器
