string(267) "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%E7%90%86%E5%BE%AE%E4%BF%A1%E9%87%8C%E9%9D%A2%E7%9A%84%E5%86%85%E5%AD%98 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
如何清理微信里面的内存
