string(294) "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%E7%89%A9%E6%B5%81%E6%A8%A1%E5%BC%8F%E5%AD%98%E5%9C%A8%E7%9A%84%E9%97%AE%E9%A2%98%E6%9C%89%E5%93%AA%E4%BA%9B => Failed to connect to 125.88.227.171 port 38114: Connection refused"
外卖物流模式存在的问题有哪些
