C++结构体作为函数参数传参

骑猪看日落 2023-02-20 07:50 43阅读 0赞

#include<iostream>
    using namespace std;
    
    #include<string>
    
    
    //结构体
    struct Student {
    
    	string name;
    	int age;
    	int score;
    
    }st3;
    
    
    /*
     *结构体作为函数参数传参
     */
    //值传递
    void printStufdent1(struct Student st3) {
    	cout << "子函数" << endl;
    	st3.age = 100;
    
    	cout << "名字：" << st3.name << "	年龄：" << st3.age << "	分数：" << st3.score << endl;
    
    }
    //地址传递
    void printStufdent2(struct Student * p) {
    	p->age = 200;
    	cout << "子函数" << endl;
    	cout << "名字：" << p->name << "	年龄：" << p->age << "	分数：" << p->score << endl;
    
    }
    
    
    int main() {
    
    	struct Student st1;
    	st1.name = "zhangsan";
    	st1.age = 18;
    	st1.score = 60;
    	//cout << "名字" << st1.name << "年龄" << st1.age << "分数" << st1.score<< endl;
    	struct Student st2={"李四",20,70};
    //	cout << "名字" << st2.name << "年龄" << st2.age << "分数" << st2.score<< endl;
    	
    	
    	st3.name = "王五";
    	st3.age = 19;
    	st3.score = 59;
    
    	printStufdent1(st3);
    	cout << "main函数" << endl;
    	cout << "名字：" << st3.name << "	年龄：" << st3.age << "	分数：" << st3.score << endl;
    
    	printStufdent2(&st3);
    	cout << "main函数" << endl;
    	cout << "名字：" << st3.name << "	年龄：" << st3.age << "	分数：" << st3.score << endl;
    
    	system("pause");
     }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3l3bDQ3MDgxMjA4Nw_size_16_color_FFFFFF_t_70][]

从结果我们知道结构体作为函数的参数传参有两种形式

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3l3bDQ3MDgxMjA4Nw_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200625104450660.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3l3bDQ3MDgxMjA4Nw==,size_16,color_FFFFFF,t_70