OC语言-01类和对象

// cc 文件名.m -framework Foundation   编译链接
 
#import <Foundation/Foundation.h>
 
//枚举性别
typedef enum{
    SexMen,
    SexWoman,
    SexUnknow
} Sex;
 
//枚举毛色
typedef enum{
    FurColorBlack,
    FurColorRed,
    FurColorGreen
} FurColor;
 
//结构体日期
typedef struct{
    int year;
    int month;
    int day;
} Date;
 
//创建狗类
@interface Dog : NSObject
{
    @public
    double weigth;  //体重
    FurColor fcolor; //毛色
}
- (void)run;
- (void)eat;
@end
 
//实现狗类方法
@implementation Dog
- (void)run
{
    weigth -= ;
    NSLog(@"狗开始跑了,体重减1,现在的体重是:%.2f",weigth);
}
- (void)eat
{
    weigth += ;
    NSLog(@"狗开始吃了,体重加1,现在的体重是:%.2f",weigth);
}
@end
 
//创建学生类
@interface Student : NSObject
{
    @public
    char *name; //姓名
    Sex sex;  //性别
    int age;  //年龄
    double weigth; //体重
    Date birthday; //生日
    Dog *dog;
}
- (void)liuDog;
- (void)weiDog;
- (void)print;
@end
 
//实现学生方法
@implementation Student
- (void)print
{
    NSLog(@"姓名:%s,性别:%d,年龄:%d岁,体重:%.2f公斤,出生日期:%d-%d-%d,狗的体重:%.2f,狗的毛色:%d",name,sex,age,weigth,birthday.year,birthday.month,birthday.day,dog->weigth,dog->fcolor);
}
 
-(void)liuDog
{
    [dog run];
}
- (void)weiDog
{
    [dog eat];
}
@end
 
int main()
{
    Dog *zsDog = [Dog new];
    zsDog->weigth = ;
    zsDog->fcolor = FurColorBlack;
 
    Student *zs =[Student new];
    zs->name = "jack"; //??中文赋值时无输出??
    zs->sex = SexMen;
    zs->age = ;
    zs->weigth = 75.3;
    Date d = {,,};
    zs->birthday = d;
    zs->dog =zsDog;
    [zs print];
    [zs liuDog];
    [zs weiDog];
    return ;
}

#import <Foundation/Foundation.h>
 
@interface Calc : NSObject
{
 
}
- (int)sumWithNum1:(int)num1 andNum2:(int)num2;
- (int)pingFangWithNum:(int)num;
@end
 
@implementation Calc
 
- (int)sumWithNum1:(int)num1 andNum2:(int)num2;
{
    return num1+num2;
}
 
-(int)pingFangWithNum:(int)num
{
    return num * num;
}
@end
 
int main()
{
    Calc *c= [Calc new];
    int sum = [c sumWithNum1: andNum2:];
    int pf =[c pingFangWithNum:];
    NSLog(@"sum=%d,平方:%d",sum,pf);
    return ;
}