- (CGFloat)getFileSize:(NSString *)path
{
    NSFileManager *fileManager = [NSFileManager defaultManager];
    float filesize = - 1.0;
    if ([fileManager fileExistsAtPath:path]) {
        
        //获取文件的属性
        NSDictionary *fileDic = [fileManager attributesOfItemAtPath:path error:nil];
        unsigned long long size = [[fileDic objectForKey:NSFileSize] longLongValue];
        filesize = 1.0 * size / 1024 / 1024;
        
    }else{
        
        NSLog(@"文件不存在");
    }
    return filesize;
}

- (CGFloat)getFileSize:(NSString *)path
{
    NSFileManager *fileManager = [NSFileManager defaultManager];
    float filesize = - 1.0;
    if ([fileManager fileExistsAtPath:path]) {
        
        //获取文件的属性
        NSDictionary *fileDic = [fileManager attributesOfItemAtPath:path error:nil];
        unsigned long long size = [[fileDic objectForKey:NSFileSize] longLongValue];
        filesize = 1.0 * size / 1024 / 1024;
        
    }else{
        
        NSLog(@"文件不存在");
    }
    return filesize;
}