string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%92%8B%E6%A0%B7%E6%B8%85%E7%90%86%E5%BE%AE%E4%BF%A1%E5%86%85%E5%AD%98 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
咋样清理微信内存
