string(278) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%A1%BA%E4%B8%B014%E5%9D%97%E9%92%B1%E5%92%8C23%E5%9D%97%E9%92%B1%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB => Failed to connect to 14.18.117.71 port 38093: Connection refused"
顺丰14块钱和23块钱有什么区别
