string(319) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%90%83%E4%BA%86%E6%9F%BF%E5%AD%90%E4%B8%8D%E8%83%BD%E5%90%83%E8%9E%83%E8%9F%B9%E5%90%97%E8%BF%98%E6%98%AF%E8%A7%84%E5%AE%9A%E6%97%B6%E9%97%B4%E5%86%85 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
吃了柿子不能吃螃蟹吗还是规定时间内
