string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E6%9C%BA%E7%94%B5%E7%8E%8B%E5%85%8B%E8%8B%8F%E5%A9%B7 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
一建机电王克苏婷
