VideoProject4\._build
.............\1.png
.............\2.png
.............\3.png
.............\4.png
.............\build\._VideoProject4.build
.............\.....\Debug-iphonesimulator\VideoProject4.app\1.png
.............\.....\.....................\.................\2.png
.............\.....\.....................\.................\3.png
.............\.....\.....................\.................\4.png
.............\.....\.....................\.................\Info.plist
.............\.....\.....................\.................\MainWindow.nib
.............\.....\.....................\.................\PkgInfo
.............\.....\.....................\.................\untitled.bmp
.............\.....\.....................\.................\VideoProject4
.............\.....\.....................\.................\..............momd\VersionInfo.plist
.............\.....\.....................\.................\..................\VideoProject4.mom
.............\.....\.....................\..................dSYM\Contents\Info.plist
.............\.....\.....................\......................\........\Resources\DWARF\VideoProject4
.............\.....\VideoProject4.build\._VideoProject4.pbxindex
.............\.....\...................\Debug-iphonesimulator\VideoProject4.build\build-state.dat
.............\.....\...................\.....................\...................\build-state~.dat
.............\.....\...................\.....................\...................\Objects-normal\i386\ButtonViewController.o
.............\.....\...................\.....................\...................\..............\....\main.o
.............\.....\...................\.....................\...................\..............\....\VideoProject4.LinkFileList
.............\.....\...................\.....................\...................\..............\....\VideoProject4AppDelegate.o
.............\.....\...................\.....................\...................\VideoProject4-all-target-headers.hmap
.............\.....\...................\.....................\...................\VideoProject4-generated-files.hmap
.............\.....\...................\.....................\...................\VideoProject4-own-target-headers.hmap
.............\.....\...................\.....................\...................\VideoProject4-project-headers.hmap
.............\.....\...................\.....................\...................\VideoProject4.dep
.............\.....\...................\.....................\...................\VideoProject4.hmap
.............\.....\...................\.....................\...................\VideoProject4~.dep
.............\.....\...................\VideoProject4.pbxindex\categories.pbxbtree
.............\.....\...................\......................\cdecls.pbxbtree
.............\.....\...................\......................\decls.pbxbtree
.............\.....\...................\......................\files.pbxbtree
.............\.....\...................\......................\imports.pbxbtree
.............\.....\...................\......................\pbxindex.header
.............\.....\...................\......................\protocols.pbxbtree
.............\.....\...................\......................\refs.pbxbtree
.............\.....\...................\......................\strings.pbxstrings\control
.............\.....\...................\......................\..................\strings
.............\.....\...................\......................\subclasses.pbxbtree
.............\.....\...................\......................\symbols0.pbxsymbols
.............\Classes\._ButtonViewController.m
.............\.......\._VideoProject4AppDelegate.h
.............\.......\._VideoProject4AppDelegate.m
.............\.......\ButtonViewController.h
.............\.......\ButtonViewController.m
.............\.......\VideoProject4AppDelegate.h
.............\.......\VideoProject4AppDelegate.m
.............\main.m
.............\MainWindow.xib
.............\untitled.bmp
.............\Vide