string(329) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A4%96%E5%A2%99%E8%84%9A%E6%89%8B%E6%9E%B6%E6%90%AD%E5%BB%BA%E7%A6%BB%E5%A2%99%E7%9A%84%E5%AE%BD%E5%BA%A6%E6%98%AF%E8%A7%84%E5%AE%9A%E5%A4%9A%E5%B0%91%E7%B1%B3 => Failed to connect to 101.91.112.32 port 38221: Connection refused"
外墙脚手架搭建离墙的宽度是规定多少米
