string(239) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2%E5%BB%BA%E6%B3%95%E8%A7%84%E7%9F%A5%E8%AF%86%E7%82%B9%E6%B1%87%E6%80%BB => Failed to connect to 61.171.74.35 port 38041: Connection refused"
2建法规知识点汇总
