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%B3%95%E8%A7%84%E8%AF%95%E9%A2%98%E8%A1%A5%E8%80%83 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
一建法规试题补考
