#import "ViewController.h"@interface ViewController ()@property (nonatomic,assign) CGFloat size;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    NSString * path = @"/Users/tc/Desktop/图片text";    NSLog(@"%g",[self FileSize:path]);}/** *  @param path 文件的绝对路径 */- (CGFloat)FileSize:(NSString *)path{        NSFileManager * manager = [NSFileManager defaultManager];        NSArray * arr = [manager contentsOfDirectoryAtPath:path error:nil];        BOOL isDir;    for (NSString * fileName in arr) {        NSString * filePath = [path stringByAppendingPathComponent:fileName];        if (!([manager fileExistsAtPath:filePath isDirectory:&isDir] && isDir)) {            NSDictionary * dic = [manager attributesOfItemAtPath:filePath error:nil];            _size += dic.fileSize;        }else{            [self FileSize:filePath];        }    }    return _size;}@end