测试Android的文件读写功能

写一个程序，用来不断输出byte到一个新建的文件当中

java.io.IOException: write failed: ENOSPC (No space left on device)

java.io.FileNotFoundException: /storage/sdcard0/test_file: open failed: EACCES (Permission denied)

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />