string(292) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E6%A0%B7%E4%BF%9D%E5%AD%98%E7%8E%AB%E7%91%B0%E8%8A%B1%E4%BF%9D%E6%8C%81%E7%9A%84%E6%97%B6%E9%97%B4%E6%9B%B4%E9%95%BF => Failed to connect to 14.18.117.71 port 38069: Connection refused"
怎样保存玫瑰花保持的时间更长
