string(233) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA2021%E5%B9%B4%E7%9C%9F%E9%A2%98%E8%A7%A3%E6%9E%90 => Failed to connect to 14.116.215.7 port 38225: Connection refused"
一建2021年真题解析
