使用Archiver复制对象

#import <Foundation/Foundation.h>
//  使用Archiver复制对象
int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NSMutableArray *array = [NSMutableArray arrayWithObjects:
            [NSMutableString stringWithString:@"abc"],
            [NSMutableString stringWithString:@"xyz"],
            [NSMutableString stringWithString:@"dbc"],
                                 nil];
        NSMutableArray *array1;
        NSData *data= [NSKeyedArchiver archivedDataWithRootObject:array];//将数字转换成NAdata
        
        array1 = [NSKeyedUnarchiver unarchiveObjectWithData:data];//将data进行解码,转化成array1
        [array addObject:@"小强"];
        NSLog(@"array:%@", array);
    /*
     array:(
     abc,
     xyz,
     dbc,
     "\U5c0f\U5f3a"
     )
     */
        NSLog(@"array1:%@", array1);//这里是将array的数据复制到array1中,所以更改array里面的数据,array1依旧是原始值
    /*
     array1:(
     abc,
     xyz,
     dbc
     )
     */
    }
    return 0;
}