string(312) "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%85%A7%E7%89%87%E6%89%93%E5%BC%80%E8%BF%87%E4%B8%80%E4%B8%8B%E4%BC%9A%E5%8F%98%E6%9A%97%E6%80%8E%E4%B9%88%E5%9B%9E%E4%BA%8B => Failed to connect to 14.18.46.51 port 38044: Connection refused"
raw格式照片打开过一下会变暗怎么回事
