string(292) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88%E6%94%B9%E7%AD%BE%E7%9A%84%E6%97%B6%E5%80%99%E8%BF%98%E6%98%AF%E8%A6%81%E4%BB%98%E5%8E%9F%E4%BB%B7 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
为什么改签的时候还是要付原价
