Enumerate the contents of a directory

refer to  Addison Wesley - Programming.in.ObjectiveC.2.0.2nd (2009)

#import <Foundation/NSString.h>
#import <Foundation/NSFileManager.h>
#import <Foundation/NSAutoreleasePool.h>
#import <Foundation/NSArray.h>
int main (int argc, char *argv[])
{
NSAutoreleasePool     * pool = [[NSAutoreleasePool alloc] init];
NSString              *path;
NSFileManager         *fm;
NSDirectoryEnumerator *dirEnum;
NSArray               *dirArray;

// Need to create an instance of the file manager
fm = [NSFileManager defaultManager]; //所有檔案處理要先定義的動作

// Get current working directory path
path = [fm currentDirectoryPath];

// Enumerate the directory
dirEnum = [fm enumeratorAtPath: path];　//會連次目錄的檔案一併列舉
NSLog (@ ” Contents of %@: ” , path);
while ((path = [dirEnum nextObject]) != nil)
NSLog (@ ” %@ ” , path);

// Another way to enumerate a directory
dirArray = [fm directoryContentsAtPath:　[fm currentDirectoryPath]];//只就純檔案　　
NSLog (@ ” Contents using directoryContentsAtPath: ” );

for ( path in dirArray )
NSLog (@ ” %@ ” , path);

[pool drain];
return 0;
}

Contents of /Users/stevekochan/mysrc/ch16:
a.out
dir1.m
dir2.m
file1.m
newdir
newdir/file1.m
newdir/output
path1.m
testfile


Contents using directoryContentsAtPath:
a.out
dir1.m
dir2.m
file1.m
newdir
path1.m
testfile