ios 序列化

NSData *archiveCarPriceData = [NSKeyedArchiver archivedDataWithRootObject:self.DataArray];
    [[NSUserDefaults standardUserDefaults] setObject:archiveCarPriceData forKey:@"DataArray"];
 

 NSData *myEncodedObject = [[NSUserDefaults standardUserDefaults] objectForKey:@"DataArray"];
     self.dataList = [NSKeyedUnarchiver unarchiveObjectWithData: myEncodedObject];