string(264) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A6%82%E4%BD%95%E6%B8%85%E9%99%A4%E5%BE%AE%E4%BF%A1%E7%9A%84%E5%86%85%E5%AD%98%E6%B8%85%E7%90%86 => Failed to connect to 14.18.46.51 port 38206: Connection refused"
如何清除微信的内存清理
