string(303) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E4%B9%88%E6%B8%85%E7%90%86%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87%E5%92%8C%E8%A7%86%E9%A2%91%E7%9A%84%E7%BC%93%E5%AD%98%E5%91%A2 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
怎么清理微信图片和视频的缓存呢
