Apple uses Objective C. You can sign in to Apple Developer websi

It is free. You can get Xcode and all the documents, sample codes, etc.

You do need to have a Mac.

所有跟帖： 

• 非常感谢！ -茶园15- ♀ (0 bytes) () 04/22/2014 postreply 11:09:03

• You are welcome. If you have a lydia.com account, there are -baydad- ♂ (38 bytes) () 04/22/2014 postreply 12:51:03

• lynda.com -Guoluke2- ♂ (0 bytes) () 04/22/2014 postreply 13:49:31

• Thanks for the correction. -baydad- ♂ (0 bytes) () 04/22/2014 postreply 22:16:12