ios plist檔案和載入到記憶體時佔用空間大小

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plist檔案以文本形式儲存，一個字元佔用一個位元組，外加plist檔案的頭部，佔用空間就是所有的字元數。

載入到記憶體所佔空間與檔案大小一致。

比如下方一個字串是300個字元。10000個Object Storage Service到檔案中，檔案大小為3.2MB。載入到記憶體所佔空間也是3.2MB

- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.    NSMutableArray *array = [[NSMutableArray alloc] init];        for (int i=0; i<10000; i++) {        [array addObject:@"adsjadslkjfksdajfklasjdkfkalsdklfadsjadslkjfksdajfklasjdkfkalsdklfadsjadslkjfksdajfklasjdkfkalsdklfadsjadslkjfksdajfklasjdkfkalsdklfadsjadslkjfksdajfklasjdkfkalsdklfadsjadslkjfksdajfklasjdkfkalsdklfadsjadslkjfksdajfklasjdkfkalsdklfadsjadslkjfksdajfklasjdkfkalsdklfadsjadslkjfksdajfklasjdkfkalsdklfa300"];    }    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);    NSString *documentsDirectory = [paths objectAtIndex:0];    NSString *fileName = @"1.plist";    NSString *filePath = [documentsDirectory stringByAppendingPathComponent:fileName];    NSLog(@"path is : %@",filePath);    [array writeToFile:filePath atomically:YES];        NSArray *arr2 = [NSArray arrayWithContentsOfFile:filePath];    self.arr2 = arr2;    NSLog(@"");    }

 

ios plist檔案和載入到記憶體時佔用空間大小