string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%90%83%E6%9F%BF%E5%AD%90%E6%98%AF%E4%B8%8D%E6%98%AF%E4%B8%8D%E8%83%BD%E5%90%83%E8%9E%83%E8%9F%B9%E4%BA%86%E5%91%A2 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
吃柿子是不是不能吃螃蟹了呢
