string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BD%91%E4%B8%8A%E4%B9%A6%E5%BA%97%E5%89%8D%E7%AB%AF%E4%BB%A3%E7%A0%81 => Failed to connect to 101.89.143.195 port 38205: Connection refused"
网上书店前端代码
