string(235) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2021%E5%B9%B4%E5%85%AC%E8%B7%AF%E4%BA%8C%E5%BB%BA%E5%AE%9E%E5%8A%A1 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
2021年公路二建实务
