string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BC%A9%E9%87%8F%E6%94%B6%E5%8D%81%E5%AD%97%E6%98%9F%E9%98%B3%E7%BA%BF => Failed to connect to 14.18.117.71 port 38220: Connection refused"
缩量收十字星阳线
