string(249) "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%E9%80%9A%E4%BF%A1%E9%9A%BE%E8%80%83%E5%90%97%E7%9F%A5%E4%B9%8E => Failed to connect to 125.88.227.171 port 38114: Connection refused"
一建通信难考吗知乎
