string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B1%BD%E8%BD%A6%E7%9A%84%E6%8A%98%E6%89%A3%E5%A6%82%E4%BD%95%E8%AE%A1%E7%AE%97 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
汽车的折扣如何计算
