string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B7%98%E5%AE%9D%E4%BB%A3%E7%90%86%E6%98%AF%E5%B9%B2%E5%98%9B%E7%9A%84 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
淘宝代理是干嘛的
