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  • 在C语言中使用面向对象

    参考:

    https://blog.csdn.net/daheiantian/article/details/6233058

    https://blog.csdn.net/qq_35433716/article/details/87464502

    之前一直以为C语言是面向过程的语言,没办法使用面向对象,后来看了大牛的一篇文章。醍醐灌顶,原来面向过程、面向对象是一种编程思想。

    C语言只是没有class关键字,并不代表它不能实现面向对象的思想。

    下面通过结构体和函数指针定义一个学生Student对象,代码如下:

    可以看到,有父类有子类,有属性有方法,基本上已经满足了面向对象的基本要素

    /**
     * Created by wangbin on 2022/1/11.
     * Implementing Object Orientation in C Language
    */
    
    #include <stdio.h>
    
    //parent class
    typedef struct PERSON {
        char *name;
        int age;
    } person;
    //define subclass
    typedef struct STUDENT {
        person p;
        int language;
        int math;
        int english;
    
        int (*total_score)(struct STUDENT *s);
    
    } Student;
    
    int get_total_score(struct STUDENT *s) {
        return s->language + s->math + s->english;
    }
    
    //initial Student
    void init(Student *s, char *name, int language, int math, int english) {
        s->p.name = name;
        s->p.age = 18;
        s->language = language;
        s->math = math;
        s->english = english;
        s->total_score = get_total_score;
    }
    
    int main(void) {
        char name[10];
        int language, math, english, score1;
        Student s1;
        printf("Enter your name and three numbers,split by space\n");
        scanf("%s %d %d %d", name, &language, &math, &english);
        init(&s1, name, language, math, english);
        score1 = s1.total_score(&s1);
        printf("name=%s,age=%d,score=%d", s1.p.name, s1.p.age, score1);
    }
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  • 原文地址:https://www.cnblogs.com/wangbin2188/p/15787256.html
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