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http://blog.csdn.net/a21064346/article/details/8270216

´úÂëÈçÏÂ：

[csharp] view plain copy

1. #include <sys/statvfs.h>
3. double get_disk_capacity ( char * path)
4. {
5. struct statvfs sfs;
6. unsigned long long result = 0;
7. double disk_capacity = 0;
9. if ( statvfs ( path, &sfs) != -1 )
10. {
11. result = (unsigned long long)sfs.f_frsize * sfs.f_blocks;
13. if (result > 0)
14. {
15. disk_capacity = (double)result/(1024*1024);
16. }
17. }
19. return disk_capacity;
20. }
22. - (void)printf {
23. // Sum the size of the two logical partitions (root + user space)
24. double total_capacity = get_disk_capacity("/") + get_disk_capacity("/private/var");
26. printf( "%.2f MB", total_capacity);
27. }

·½·¨2：

[csharp] view plain copy

1. NSDictionary *fsAttr = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:nil];
2. float diskSize = [[fsAttr objectForKey:NSFileSystemSize] doubleValue] / 1000000000;
3. NSLog(@"Disk Size: %0.0f",diskSize);