string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E6%A0%B7%E6%B8%85%E7%90%86%E5%BE%AE%E4%BF%A1%E8%81%8A%E5%A4%A9%E5%9B%BE%E7%89%87%E7%BC%93%E5%AD%98 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
怎样清理微信聊天图片缓存
