1th: Understanding the origins of Objective-c language

is about to release Swift 4, oneself is also learning swift, behind the IOS programming estimated also fast is the world of swift, but I still in this hold a book that says OC is gnawing, strange only blame oneself before too lazy, according to price good dozens of yuan buy book not finish, simply sorry own conscience. In fact, the biggest reason is that the current programming foundation is too weak, only know the simple system API, the development of the depth can not be shallow, so only the learning base, can really find the way out of the step. Thousands of words into a sentence to their own word-"now learning OC is not too late, but when to keep up with the pace of the big guy".

　　

Main points of this article: (Summary by the author)

• Objective-c adds an object-oriented feature to the C language and is a superset of it. Objective-c uses a dynamically bound message structure, which means that the object type is checked at run time. What code should be executed after receiving a message is determined by the run-time environment, not the compiler.
• Understanding the core concepts of C language helps to write good objective-c programs. In particular, learn about memory models and pointers.

　　

1th: Understanding the origins of Objective-c language