命令： sudo apt-get install php7.0
输出：
Reading package lists... Done
Building dependency tree
Reading state information... Done
php7.0 is already the newest version (7.0.8-0ubuntu0.16.04.1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] Y
Setting up libapache2-mod-php7.0 (7.0.8-0ubuntu0.16.04.1) ...
Error: The new file /usr/lib/php/7.0/php.ini-production does not exist!
dpkg: error processing package libapache2-mod-php7.0 (--configure): …