string(242) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%A1%BA%E4%B8%B023%E5%9D%97%E5%92%8C18%E5%9D%97%E7%9A%84%E5%8C%BA%E5%88%AB => Failed to connect to 61.171.74.35 port 38027: Connection refused"
顺丰23块和18块的区别
