string(321) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%AF%86%E5%88%AB%E5%9B%BE%E7%89%87%E4%B8%AD%E7%9A%84%E6%96%87%E5%AD%97%E5%AD%97%E4%BD%93%E5%92%8C%E5%A4%A7%E5%B0%8F%E6%80%8E%E4%B9%88%E8%AE%BE%E7%BD%AE => Failed to connect to 101.89.117.144 port 38208: Connection refused"
识别图片中的文字字体和大小怎么设置
