#import "AddressBook.h"
#import <Foundation/NSAutoreleasePool.h>
int main (intargc, char *argv[]){
NSString *aName = @"Julia Kochan";
NSString *aEmail = @"jewls337@axlc.com";
NSString *bName = @"Tony Iannino";
NSString *bEmail = @"tony.iannino@techfitness.com";
NSString *cName = @"Stephen Kochan";
NSString *cEmail = @"steve@steve_kochan.com";
NSString *dName = @"Jamie Baker";
NSString *dEmail = @"jbaker@hitmail.com";
NSAutoreleasePool * pool = [[NSAutoreleasePoolalloc] init];
AddressCard *card1 = [[AddressCardalloc] init];
AddressCard *card2 = [[AddressCardalloc] init];
AddressCard *card3 = [[AddressCardalloc] init];
AddressCard *card4 = [[AddressCardalloc] init];
AddressBook *myBook = [AddressBookalloc];
// First set up four address cards
[card1 setName: aNameandEmail: aEmail];
[card2 setName: bNameandEmail: bEmail];
[card3 setName: cNameandEmail: cEmail];
[card4 setName: dNameandEmail: dEmail];
myBook = [myBookinitWithName: @"Steve’s Address Book"];
// Add some cards to the address book
[myBookaddCard: card1];
[myBookaddCard: card2];
[myBookaddCard: card3];
[myBookaddCard: card4];
[myBook sort];
if ([NSKeyedArchiverarchiveRootObject: myBooktoFile:
@"addrbook.arch"]  == NO)
NSLog (@"archiving failed");
[card1 release];
[card2 release];
[card3 release];
[card4 release];
[myBook release];
[pool drain];
return 0;
}// Addresscard.h Interface File 对AddressBook解码
#import "AddressBook.h"
#import <Foundation/NSAutoreleasePool.h>
int main (intargc, char *argv[]){
AddressBook *myBook;
NSAutoreleasePool * pool = [[NSAutoreleasePoolalloc] init];
myBook = [NSKeyedUnarchiverunarchiveObjectWithFile:  @"addrbook.arch"];
[myBook list];
[pool drain];
return 0;
}

@interface Foo: NSObject<NSCoding>
{
NSString *strVal;
intintVal;float floatVal;
}
@property (copy, nonatomic) NSString *strVal;
@property intintVal;
@property float floatVal;
@end
@implementation Foo
@synthesize strVal, intVal, floatVal;
-(void) encodeWithCoder: (NSCoder *) encoder
{   //对每个实例变量编码 归档对象的三个实例变量
    [encoder encodeObject: strValforKey: @”FoostrVal”];[encoder encodeInt: intVal forKey: @”FoointVal”];[encoder encodeFloat: floatValforKey: @”FoofloatVal”];
}
-(id) initWithCoder: (NSCoder *) decoder
{   //解码每个实例变量
strVal = [[decoder decodeObjectForKey: @”FoostrVal”] retain];
intVal = [decoder decodeIntForKey: @”FoointVal”];
floatVal = [decoder decodeFloatForKey: @”FoofloatVal”];return self;
}
@end

#import <Foundation/NSObject.h>
#import <Foundation/NSString.h>
#import <Foundation/NSKeyedArchiver.h>
#import <Foundation/NSAutoreleasePool.h>
#import “Foo.h” // Definition for our Foo class
int main (intargc, char *argv[]){
NSAutoreleasePool * pool = [[NSAutoreleasePoolalloc] init];
Foo *myFoo1 = [[Fooalloc] init];  Foo *myFoo2;
[myFoo1 setStrVal: @”This is the string”];
[myFoo1 setIntVal: 12345];
[myFoo1 setFloatVal: 98.6];
[NSKeyedArchiverarchiveRootObject: myFoo1 toFile: @”foo.arch”];
myFoo2 = [NSKeyedUnarchiverunarchiveObjectWithFile: @”foo.arch”];
NSLog (@”%@\n%i\n%g”, [myFoo2 strVal], [myFoo2 intVal], [myFoo2 floatVal]);
[myFoo1 release];
[pool drain];
return 0;
}

结果：

//归档
#import <Foundation/NSObject.h>
#import <Foundation/NSAutoreleasePool.h>
#import <Foundation/NSString.h>
#import <Foundation/NSKeyedArchiver.h>
#import <Foundation/NSCoder.h>
#import <Foundation/NSData.h>
#import "AddressBook.h"
#import "Foo.h"
int main (intargc, char *argv[])
{
NSAutoreleasePool * pool = [[NSAutoreleasePoolalloc] init];
Foo *myFoo1 = [[Fooalloc] init];
Foo *myFoo2;
NSMutableData *dataArea;
NSKeyedArchiver *archiver;
AddressBook *myBook;
// in myBook containing four address cards[myFoo1 setStrVal: @"This is the string"];[myFoo1 setIntVal: 12345];[myFoo1 setFloatVal: 98.6];
// Set up a data area and connect it to an NSKeyedArchiver object
dataArea = [NSMutableData data];
archiver = [[NSKeyedArchiveralloc]
initForWritingWithMutableData: dataArea];
// Now we can begin to archive objects[archiverencodeObject: myBookforKey: @"myaddrbook"];[archiverencodeObject: myFoo1 forKey: @"myfoo1"];[archiverfinishEncoding];
// Write the archived data  to a fileif ( [dataAreawriteToFile: @"myArchive" atomically: YES] == NO)
NSLog (@"Archiving failed!");[archiver release];[myFoo1 release];[pool drain];return 0;
}

//解码
#import <Foundation/NSObject.h>
#import <Foundation/NSAutoreleasePool.h>
#import <Foundation/NSString.h>
#import <Foundation/NSKeyedArchiver.h>
#import <Foundation/NSCoder.h>
#import <Foundation/NSData.h>
#import "AddressBook.h"
#import "Foo.h"
int main (intargc, char *argv[]){
NSAutoreleasePool * pool = [[NSAutoreleasePoolalloc] init];
NSData *dataArea;
NSKeyedUnarchiver *unarchiver;
Foo *myFoo1;
AddressBook *myBook;// Read in the archive and connect an// NSKeyedUnarchiver object to it
dataArea = [NSDatadataWithContentsOfFile: @"myArchive"];
if (! dataArea) {
NSLog (@"Can’t read back archive file! ");return (1);
}
unarchiver = [[NSKeyedUnarchiveralloc] initForReadingWithData: dataArea];
// Decode the objects we previously stored in the archive
myBook = [unarchiverdecodeObjectForKey: @"myaddrbook"];
myFoo1 = [unarchiverdecodeObjectForKey: @"myfoo1"];
[unarchiverfinishDecoding];
[unarchiver release];
// Verify that the restore was successful
[myBook list];
NSLog(@"%@\n%i\n%g", [myFoo1 strVal],[myFoo1 intVal], [myFoo1 floatVal]);
[pool release];
return 0;
}

#import <Foundation/NSObject.h>
#import <Foundation/NSAutoreleasePool.h>
#import <Foundation/NSString.h>
#import <Foundation/NSKeyedArchiver.h>
#import <Foundation/NSArray.h>
int main (intargc, char *argv[])
{
NSAutoreleasePool *pool = [[NSAutoreleasePoolalloc] init];
NSData *data;
NSMutableArray *dataArray = [NSMutableArrayarrayWithObjects:[NSMutableStringstringWithString: @"one"],[NSMutableStringstringWithString: @"two"],[NSMutableStringstringWithString: @"three"],nil];
NSMutableArray *dataArray2;
NSMutableString *mStr;
    // Make a deep copy using the archiverdata = [NSKeyedArchiverarchivedDataWithRootObject: dataArray];dataArray2 = [NSKeyedUnarchiverunarchiveObjectWithData: data]; 
mStr = [dataArray2 objectAtIndex: 0];[mStrappendString: @"ONE"];
NSLog (@"dataArray: ");for ( NSString *elem in dataArray )
NSLog ("%@", elem);
NSLog (@"\ndataArray2: ");for ( NSString *elem in dataArray2 )
NSLog ("%@", elem);[pool drain];return 0;
}

结果：