电脑里内存怎么清理网!
string(247) "get document error:https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%B5%E8%84%91%E9%87%8C%E5%86%85%E5%AD%98%E6%80%8E%E4%B9%88%E6%B8%85%E7%90%86 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
电脑里内存怎么清理网!