文件列表：
yctestDemo.xcodeproj
....................\project.pbxproj,36513,2011-09-19
....................\project.xcworkspace
....................\...................\contents.xcworkspacedata,155,2011-09-15
....................\...................\xcuserdata
....................\...................\..........\sven.xcuserdatad
....................\...................\..........\................\UserInterfaceState.xcuserstate,72475,2011-09-22
....................\...................\..........\user.xcuserdatad
....................\...................\..........\................\UserInterfaceState.xcuserstate,97211,2011-09-19
....................\xcuserdata
....................\..........\sven.xcuserdatad
....................\..........\................\xcschemes
....................\..........\................\.........\xcschememanagement.plist,572,2011-09-20
....................\..........\................\.........\yctestDemo.xcscheme,3177,2011-09-20
....................\..........\user.xcuserdatad
....................\..........\................\xcdebugger
....................\..........\................\..........\Breakpoints.xcbkptlist,91,2011-09-19
....................\..........\................\xcschemes
....................\..........\................\.........\xcschememanagement.plist,572,2011-09-15
....................\..........\................\.........\yctestDemo.xcscheme,3177,2011-09-15
__MACOSX
........\yctestDemo.xcodeproj
........\....................\._project.pbxproj,227,2011-09-19
........\....................\._project.xcworkspace,227,2011-09-15
........\....................\._xcuserdata,227,2011-09-20
........\....................\project.xcworkspace
........\....................\...................\._contents.xcworkspacedata,227,2011-09-15
........\....................\...................\._xcuserdata,227,2011-09-20
........\....................\...................\xcuserdata
........\....................\...................\..........\._sven.xcuserdatad,201,2011-09-22
........\....................\...................\..........\._user.xcuserdatad,227,2011-09-19
........\....................\...................\..........\sven.xcuserdatad
........\....................\...................\..........\................\._UserInterfaceState.xcuserstate,201,2011-09-22
........\....................\...................\..........\user.xcuserdatad
........\....................\...................\..........\................\._UserInterfaceState.xcuserstate,227,2011-09-19
........\....................\xcuserdata
........\....................\..........\._sven.xcuserdatad,201,2011-09-20
........\....................\..........\._user.xcuserdatad,227,2011-09-15
........\....................\..........\sven.xcuserdatad
........\....................\..........\................\._xcschemes,201,2011-09-20
........\....................\..........\................\xcschemes
........\....................\..........\................\.........\._xcschememanagement.plist,201,2011-09-20
........\....................\..........\................\.........\._yctestDemo.xcscheme,201,2011-09-20
........\....................\..........\user.xcuserdatad
........\....................\..........\................\._xcdebugger,227,2011-09-19
........\....................\..........\................\._xcschemes,227,2011-09-15
........\....................\..........\................\xcdebugger
........\....................\..........\................\..........\._Breakpoints.xcbkptlist,227,2011-09-19
........\....................\..........\................\xcschemes
........\....................\..........\................\.........\._xcschememanagement.plist,227,2011-09-15
........\....................\..........\................\.........\._yctestDemo.xcscheme,227,2011-09-15
