剛開始按照老師設(shè)置的顯示

Not Found
The requested URL /info.php was not found on this server.
Apache/2.4.7 (Ubuntu) Server at 192.168.40.129 Port 80

然后看同學(xué)們的評(píng)論mysql改成了mysqli然后在/var/www/html目錄下創(chuàng)建了info.php然后打開瀏覽器就顯示

172.19.186.73?網(wǎng)頁(yè)無法正常運(yùn)作

172.19.186.73?目前無法處理此請(qǐng)求。

怎么辦