string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B1%8B%E9%A1%B6%E5%85%89%E4%BC%8F%E9%AB%98%E5%BA%A6%E9%99%90%E5%88%B6 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
屋顶光伏高度限制
