string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9B%BE%E7%89%87%E6%80%8E%E6%A0%B7%E6%96%87%E5%AD%97%E8%AF%86%E5%88%AB%E6%8F%90%E5%8F%96 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
图片怎样文字识别提取
