Words before OC class
08 minutes59 secondsConcepts of classes and objects
30 minutes54 secondsClass and object syntax
20 minutes41 secondsOC Engineering Introduction
22 minutes31 secondsInterface separation of classes
14 minutes53 secondsset and get methods
21 minutes10 secondsLazy loading
09 minutes56 secondsAttributes and dot syntax
14 minutes26 secondsDescription of properties
09 minutes53 secondsattribute keyword
12 minutes01 secondsmulti-parameter method
19 minutes06 secondstype method copy
15 minutes39 secondsIntroduction to strings
24 minutes00 secondsclass design
32 minutes41 secondsThe concept of inheritance
25 minutes38 secondsInherited syntax copy
07 minutes30 secondsderived syntax copy
06 minutes14 secondsrewrite mechanism
12 minutes36 secondsdescription method
14 minutes40 secondsOrdinary constructor
21 minutes07 secondsConstructor with parameters
12 minutes10 secondsdestructor
15 minutes50 secondsMember variable permissions
20 minutes56 secondscomposite type
30 minutes28 secondsPolymorphism, static types and id types
23 minutes19 secondsDynamic Properties_Dynamic Types
16 minutes42 secondsDynamic Features_Dynamic Binding
27 minutes58 secondsCategory_System built-in category
27 minutes58 secondsCategory_Custom class
18 minutes02 secondsMulti-category design_student management system_search
15 minutes02 secondsMulti-category design_student management system_addition, deletion and modification
29 minutes51 secondsMemory Management_Reference Counting
18 minutes33 secondsMemory management_settergetter method
34 minutes44 secondsMemory Management_Auto-release Pool_Basic Principles
19 minutes26 secondsMemory management_auto release pool_settergetter method
14 minutes07 secondsMemory Management_Auto-release Pool_ARC Usage
16 minutes15 secondsMemory Management Supplement_MRC_ARC Interconversion
09 minutes15 secondsMemory Management Supplement_MRC_ARC Mix
17 minutes30 secondsFoundation framework_NSString_basic creation
18 minutes33 secondsFoundation framework_NSString_combination replacement
25 minutes57 secondsFoundation framework_NSString_String comparison
13 minutes18 secondsFoundation framework_NSArray
18 minutes00 secondsFoundation framework_NSDictionary
16 minutes53 secondsFoundation framework_NSMutableDictionary
14 minutes30 secondsFoundation framework_NSSet
24 minutes42 secondsFoundation framework_NSNumber
13 minutes30 secondsFoundation framework_NSValue
14 minutes10 secondsFoundation framework_write file
33 minutes11 secondsFoundation framework_NSDate
26 minutes52 secondsFoundation framework_NSDateFormater
16 minutes06 secondsFoundation framework_NSTimer
15 minutes48 secondsFoundation framework_NSLog extension
14 minutes45 secondsAgreement_Basic Usage
15 minutes45 secondsprotocol_id_protocol name
17 minutes31 secondscopy_deep copy_shallow copy
16 minutes10 secondscopy_custom class
19 minutes47 secondsload usage_initialize usage
18 minutes11 secondsArchive_custom class
19 minutes03 secondsArchive_array archive
15 minutes26 secondsArchive_Multi-Object Archive
11 minutes46 secondsFile Operation_NSFileManager_Create Directory
13 minutes00 secondsFile Operation_NSFileManager_File Copy Delete
27 minutes35 secondsFile operation_NSFileHandler basic usage
14 minutes19 secondsBlock_Basic use
15 minutes40 secondsBlock_ is used as a formal parameter and attribute
28 minutes49 secondsBlock_Detailed explanation of capture behavior
21 minutes54 secondsDesign Pattern_Principal Agent
17 minutes46 secondsDesign pattern_single case pattern_common writing methods
19 minutes50 secondsDesign pattern_single case pattern_user tool class
17 minutes28 secondsDesign pattern_single case pattern_MRC writing method
08 minutes03 secondsDesign Pattern_KVC_Basic Search Principles
21 minutes32 secondsDesign Pattern_KVC_Model Conversion
19 minutes07 secondsDesign Pattern_KVC_CollectionType
13 minutes40 secondsDesign Pattern_KVC_Computed Property
12 minutes51 secondsDesign Pattern_Notification Center_Basic Principles
16 minutes53 secondsDesign Pattern_KVO_Basic Usage
13 minutes45 secondsDesign Mode_KVO_Manual Trigger
12 minutes14 seconds