一.OC中枚举的常见类型，及赋值方法一、typedef NS_OPTIONS(NSInteger , Colo){ ColorBlack, ColorRed, ColorGreen};方法二、typedef NS_ENUM(NSInteger , Colo){ ColorBlack, ColorRed, ColorGreen};方法三、typedef enum{ ColorBlack, ColorRed, ColorGreen}Colo;==========================用法一//@implementation ViewController{ Colo col; //颜色}//===赋值===self->col = ColorBlack;==========================用法二@interface ViewController ()@property(nonatomic , assign) Colo col; //枚举@end@implementation ViewController//=====赋值=====self.sex = ColorBlack;//或_sex = ColorBlack;
二、OC中结构体的类型，及赋值//结构体 ---年月日 姓名typedef struct { int year; int month; int day; char *name; char schoolName[10];}Date;==========================用法一@implementation ViewController{ Date birthday; //生日}======赋值==== //方法一、 Date de = {2011,10,01}; self->birthday = de; //方法二、 self->birthday.year = 2017; self->birthday.month = 03; self->birthday.day = 16;==========================用法二@interface ViewController ()@property (nonatomic , assign) Date date;@end@implementation ViewController======赋值==== self -> _date.year = 2029; self -> _date.month = 11; self -> _date.day = 01; self -> _date.name = '小明'; //这个比较特殊 用 strcpy 完成赋值 strcpy(self -> _date.names , 'pppp');