string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A4%96%E5%8D%96%E5%B9%B3%E5%8F%B0%E9%9D%A0%E4%BB%80%E4%B9%88%E8%B5%9A%E9%92%B1 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
外卖平台靠什么赚钱
