string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8B%BC%E5%A4%9A%E5%A4%9A%E9%9D%A2%E4%B8%B4%E7%9A%84%E9%A3%8E%E9%99%A9 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
拼多多面临的风险
