1, mount the optical drive
https:/ /www.cnblogs.com/healy/p/11428622.html
2 , Make network yum source files invalid
3, enter the configuration file view
4. Invalidate networ
Tag: fourth
Read Guolin “The First Radio Code” note – Chapter 4 mobile phone tablet should be taken into account, explore the fragmentation
(Fragment) is a kind of UI fragment that can be embedded in the activity, it can make the program more reasonable and make full use of the space of the large screen, so it is widely used on the tab