(I just touched Android for my first practice, and I look forward to your comments. This material includes the following attachments:
NO.24\.svn\text-base\.classpath.svn-base
NO.24\.svn\text-base\.project.svn-base
NO.24\.svn\text-base\AndroidManifest.xml.svn-base
NO.24\.svn\text-base\proguard.cfg.svn-base
NO.24\.svn\text-base\project.properties.svn-base
NO.24\.svn\all-wcprops
NO.24\.svn\entries
NO.24\.svn\lock
NO.24\assets\.svn\all-wcprops
NO.24\assets\.svn\entries
NO.24\bin\.svn\props\classes.dex.svn-work
NO.24\bin\.svn\props\NO.24.apk.svn-work
NO.24\bin\.svn\props\resources.ap_. svn-work
NO.24\bin\.svn\tmp\text-base\resources.ap_. svn-base
NO.24\bin\.svn\all-wcprops
NO.24\bin\.svn\entries
NO.24\bin\.svn\lock
NO.24\bin\classes\.svn\all-wcprops
NO.24\bin\classes\.svn\entries
NO.24\bin\classes\cn\edu\fjut\no24\activity\AppActivity$1.class
NO.24\bin\classes\cn\edu\fjut\no24\activity\AppActivity.class
NO.24\bin\classes\cn\edu\fjut\no24\activity\MainActivity$1.class
NO.24\bin\classes\cn\edu\fjut\no24\activity\MainActivity$2.class
NO.24\bin\classes\cn\edu\fjut\no24\activity\MainActivity$3.class
NO.24\bin\classes\cn\edu\fjut\no24\activity\MainActivity$4.class
NO.24\bin\classes\cn\edu\fjut\no24\activity\MainActivity$5.class
NO.24\bin\classes\cn\edu\fjut\no24\activity\MainActivity$6.class
NO.24\bin\classes\cn\edu\fjut\no24\activity\MainActivity$AnswerTime.class
NO.24\bin\classes\cn\edu\fjut\no24\activity\MainActivity$CalculateTask.class
NO.24\bin\classes\cn\edu\fjut\no24\activity\MainActivity$ChangeCardThread.class)