Design two interfaces, the first interface to add a button, click to switch to second pages, second pages randomly appear 10 different random numbers (within 140).

Filename	Size	Update
作业2\AndroidManifest.txt	765	2018-03-19
作业2\FirstActivity.txt	1001	2018-03-19
作业2\SecondActivity.txt	759	2018-03-19
作业2\first_layout.txt	743	2018-03-19
作业2\second_layout.txt	586	2018-03-19
作业2\活动一页面.png	9705	2018-03-19
作业2\活动二页面.png	20535	2018-03-19
作业2	0	2018-03-19

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