How to Learn objective-C

1. Learn the C language basics first;
2. Read programming in objective-C 2.0. Do not read objective-C 2.0. Program Design;
3. Read "cocoa Design Patterns" and "cocoa programming developer's handbook". Do not read them because they are difficult and we are beginners;
4. Yes, you need a Mac. If you really want to learn objective-C and cocoa;
5. Don't let go of any seemingly simple small programming problem-they are often not that simple, or they can draw a lot of knowledge points;
6. Objective-C will be used, but it does not mean you will program cocoa;
7. It is not difficult to learn the syntax. The Foundation, appkit, uikit, core data, and core animation are also the same. What is difficult is to stick to the practice for a long time and spare no effort to read documents;
8. Remember that to write a good app, the interface design and program functions are equally important-in fact, you can always remember that the MAC/IOS user interface specification is also a must-read document;
9. If you do not read c-language books, you cannot learn objective-C language;
10. impetuous people can easily say: XX language is not good, so you should learn YY; -- you can't do it yourself !?
11. impetuous people may easily ask: What should I learn? -- don't ask, it's right to learn;
12. It is easy for impetuous people to ask: do XX have money? -- We suggest you rob a bank;
13. impetuous people may say: I want a Chinese version! I cannot use English! -- No? Learn!
14. impetuous people may easily ask: XX and YY, Which is better? -- tell you, good.-As long as you learn;
15. impetuous people can be divided into two types: a) those who only wait and do not learn; B) those who only learn but do not stick to it;
16. Cocoa is the objective-C framework, mainly including Foundation, appkit and core data. Cocoa touch is the IOS version of cocoa, mainly including Foundation, uikit and core data;
17. Objective-C not only adds a class to C-the runtime environment is equally important;
18. One of the best ways to learn programming is to read the document and Source code Make good use of the program instance source in the xcode document. Code ;
19. Remember that objective-C is a "dynamic" language;
20. Read objective-C 2.0 programming language and other documents-official documents are always the most authoritative and complete reference books;
21. read carefully the books you can understand. Read the books you can't understand;
22. Don't expect to read the first book to remember and master anything-please read the second and third times;
23. Remember that iOS and Mac development are essentially the same, but the differences are also important;
24. Do not stay at the xcode level. Using GCC, GDB, git, and other tools through the command line will increase your efficiency;
25. Discuss meaningful objective-C and cocoa knowledge points with others, rather than arguing about whether cocoa works or whether objective-C and C ++ are good;
26. Do not be confused by various "technology" terms such as core XXX. They are just the frameworks (Libraries) of C and objective-C;
27. if you have learned C ++, please temporarily forget to use it. (point) Call method. Objective-C is in square brackets and the more accurate name is "message passing ";
28. Objective-C is a strict superset of C language, which is closely related to C language. C language is part of objective-C;
29. Do not think that it is no problem to change objective-C after learning C ++ language-you just want to learn a brand new language;
30. After reading cocoa programming developer's handbook, check whether you have learned objective-C;
31. The secret to learning programming is: programming, programming, and re-programming;
32. Pay attention to the following books: Cocoa programming developer's handbook, cocoa design pattern, IOS 4 advaced programming, cocoa programming a quick-start guide for developers.
33. Don't forget to open source because Apple is a commercial company. In my personal opinion, open source is to give, but you have gained more. Don't forget that Apple also uses a large number of open-source technologies;
34. Please input the program examples in the book into your computer for practice, even if the supporting CD contains the source code;
35. When you are idle, you can turn your ideas into code, put them on GitHub, or turn them into a software in the app store;
36. Pay attention to objective-C runtime environment programming and apply it to your own programs;
37. I often review my previous programs and try to rewrite them to apply the new knowledge I have learned;
38. Do not miss any exercise questions in the book-please finish all the exercises and record the solution ideas;
39. Objective-C, cocoa and xcode integrated development environment should be learned and mastered at the same time;
40. Since objective-C is determined, keep learning, because the objective of learning a programming language is to master the programming technology, and the programming technology is cross-language;
41. To do a good job, you must first sharpen the tool. To develop objective-C and cocoa, use xcode;
42. when you write half of the cocoa program but find that your method is poor, please do not stop immediately; please complete the remaining parts as soon as possible to ensure the integrity of this design, analyze your own errors and redesign and write them (see 43 );
43. Don't worry, it is really not easy to design objective-C classes; the classes in your programs and their class design levels are improved and developed in constant programming practices;
44. Never follow certain rules that you are not proficient in because the program is "very small"-Good habits are developed rather than remembered at once;
45. Every time you learn an objective-C difficulty, you try to explain this knowledge point to others and let them understand it-you can clearly explain it to you to really understand it;
46. Record the knowledge points that you ignore or do not understand when communicating with others;
47. Please constantly put forward higher requirements for your own programs, even if your program version will change to version 100.xx;
48. Save all programs you have written-GitHub is your best code hosting tool;
49. Do not be impetuous people;
50. Love objective-C!