string(259) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=raw%E6%A0%BC%E5%BC%8F%E7%9A%84%E7%85%A7%E7%89%87%E7%94%A8%E4%BB%80%E4%B9%88%E6%89%93%E5%BC%80 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
raw格式的照片用什么打开
