FTP无法删除文件夹，550 Can't remove directory: Permission denied

1. [右] RMD /bt.cn/uploads/201308
   
2. [右] 550 Can't remove directory: Permission denied
   
3. [右] RMD /bt.cn/uploads/201306
   
4. [右] 550 Can't remove directory: Permission denied
   
5. [右] RMD /bt.cn/uploads/201305
   
6. [右] 550 Can't remove directory: Permission denied
   
7. [右] RMD /bt.cn/uploads/201303
   
8. [右] 550 Can't remove directory: Permission denied
   
9. [右] RMD /bt.cn/uploads/201301
   
10. [右] 550 Can't remove directory: Permission denied
    
11. [右] RMD /bt.cn/uploads/2013/11
    
12. [右] 550 Can't remove directory: Permission denied
    
13. [右] RMD /bt.cn/uploads/2013
    
14. [右] 550 Can't remove directory: Permission denied
    
15. [右] RMD /bt.cn/uploads/201212
    
16. [右] 550 Can't remove directory: Permission denied
    
17. [右] RMD /bt.cn/uploads/201211
    
18. [右] 550 Can't remove directory: Permission denied
    
19. [右] RMD /bt.cn/uploads/201210
    
20. [右] 550 Can't remove directory: Permission denied
    
21. [右] RMD /bt.cn/uploads/201208
    
22. [右] 550 Can't remove directory: Permission denied
    
23. [右] RMD /bt.cn/uploads/201203
    
24. [右] 550 Can't remove directory: Permission denied
    
25. [右] RMD /bt.cn/uploads/201111
    
26. [右] 550 Can't remove directory: Permission denied
    
27. [右] RMD /bt.cn/uploads/201104
    
28. [右] 550 Can't remove directory: Permission denied
    
29. [右] RMD uploads
    
30. [右] 550 Can't remove directory: Directory not empty
    
31. [右] RMD MySQL
    
32. [右] 550 Can't remove directory: Directory not empty
    
33. [右] RMD ErrorFiles
    
34. [右] 550 Can't remove directory: Directory not empty
    
35. [右] PASV
    
36. [右] 227 Entering Passive Mode (192,168,1,217,154,188)
    
37. [右] 正在打开数据连接 IP: 192.168.1.217 端口: 39612
    
38. [右] MLSD
    
39. [右] 150 Accepted data connection
    
40. [右] 226-Options: -a -l
    
41. [右] 226 9 matches total
    
42. [右] 列表完成: 947 字节 于 0.02 秒 (0.9 KB/秒)
    
43. 已删除 0 文件 和 0 文件夹 (0 字节) 于 12 秒
    

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还有文件也有一部分无法删除呢。请问下这个要怎么解决呢。