ubuntu18.04 安裝軟件中心(software-center)

ubuntu16.04升級到18.04之後，軟件中心找不到了，那就找回來吧
查看software-center 源

 sudo apt list | egrep software-center

可以看到下面信息：

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
software-center-aptdaemon-plugins/bionic,bionic,now 0.1.6build1 all [installed]
ubuntu-kylin-software-center/bionic,bionic 1.3.14 all

根據提示進行安裝

sudo apt-get install software-center-aptdaemon-plugins/bionic

安裝完成後，就可以找到啦。