string(266) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A6%82%E4%BD%95%E4%BF%9D%E9%B2%9C%E7%8E%AB%E7%91%B0%E8%8A%B1%E4%B8%8D%E5%8F%98%E8%89%B2%E5%91%A2 => Failed to connect to 101.91.112.32 port 38162: Connection refused"
如何保鲜玫瑰花不变色呢
