string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%93%81%E5%8D%95%E4%BB%B7%E8%AE%A1%E7%AE%97%E5%85%AC%E5%BC%8F => Failed to connect to 101.89.166.210 port 38089: Connection refused"
品单价计算公式
