string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9C%89%E4%BA%86%E4%BA%8C%E5%BB%BA%E6%89%8D%E8%83%BD%E8%80%83%E4%B8%80%E5%BB%BA => Failed to connect to 61.171.74.35 port 38041: Connection refused"
有了二建才能考一建
