iphone开发：plist操作

想在一个类里把个数组写进.plist文件里，再在另一个类里从这个.plist文件把数组读取出来？

以name，phoneNumber，age三个字段，为例。我是做的iphone,在文本框中输入数据，获取后，装入数组中。然后把数组写入.plist文件

写操作

    NSString *name=[txt1 text];
    NSNumber *phoneNumber=[[NSNumber alloc] initWithInt:[[txt2 text] intValue]];
    NSNumber *age=[[NSNumber alloc] initWithInt:[[txt3 text] intValue]];
   
    NSMutableArray *array=[[NSMutableArray alloc]init];
    [array  addObject:name];
    [array  addObject:phoneNumber];
    [array  addObject:age];

    NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
    NSString *path=[paths    objectAtIndex:0];
    NSString *filename=[path stringByAppendingPathComponent:@"personal.plist"];   
   
    [array writeToFile:filename  atomically:YES];
    [array release];

读操作
NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
    NSString *path=[paths    objectAtIndex:0];
    NSString *filename=[path stringByAppendingPathComponent:@"personal.plist"];
   
    NSMutableArray *array=[[NSMutableArray alloc] initWithContentsOfFile:filename];
   
    txt1.text=[array objectAtIndex:0];
    txt2.text=[[NSString alloc] initWithFormat:@"%d",[[array objectAtIndex:1] intValue]];
    txt3.text=[[NSString alloc] initWithFormat:@"%d",[[array objectAtIndex:2] intValue]];

    [array release];

摘自 云怀空－abel