string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%A2%86%E5%AF%BC%E8%AE%A9%E6%8F%90%E5%B7%A5%E4%BD%9C%E4%B8%AD%E7%9A%84%E5%9B%B0%E9%9A%BE => Failed to connect to 14.18.117.71 port 38069: Connection refused"
领导让提工作中的困难
