string(294) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8A%96%E9%9F%B3%E6%B8%85%E9%99%A4%E7%BC%93%E5%AD%98%E4%BC%9A%E4%B8%A2%E5%A4%B1%E4%BB%80%E4%B9%88%E6%95%B0%E6%8D%AE%E5%91%A2 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
抖音清除缓存会丢失什么数据呢
