string(274) "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%E7%BC%93%E5%AD%98%E5%86%85%E5%AD%98%E5%9E%83%E5%9C%BE => Failed to connect to 14.116.215.7 port 38225: Connection refused"
怎么清理微信缓存内存垃圾
