string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E9%80%A0%E9%9A%BE%E8%BF%98%E6%98%AF%E4%B8%80%E5%BB%BA%E9%9A%BE => Failed to connect to 14.18.117.71 port 38133: Connection refused"
一造难还是一建难
