string(276) "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%E5%AD%97%E4%BD%93%E7%9A%84%E5%B7%A5%E5%85%B7%E6%9C%89%E5%93%AA%E4%BA%9B => Failed to connect to 101.89.143.195 port 38109: Connection refused"
识别图片字体的工具有哪些
