C++:结构体指针与函数

结构体指针

通过指针访问结构体中的成员
利用操作符->可以通过结构体指针访问结构体属性。

#include <iostream>
#include <string>
using namespace std;

struct Student {
    string name;
    int age;
    int score;
};

int main(){

    struct Student s = { "Mike",18,100 };

    struct Student* p = &s;
    cout << "name" << p->name
        << "age" << p->age
        << "score" << p->score << endl;


    system("pause");
    return 0;

}

结构体函数

将结构体作为参数向函数中传递，值传递与地址传递。

#include <iostream>
#include <string>
using namespace std;

struct Student {
    string name;
    int age;
    int score;
};

void printStudent(struct Student s) {

    cout << "name" << s.name
        << "age" << s.age
        << "score" << s.score << endl;
}

void printStudent1(struct Student *p) {

    cout << "name" << p->name
        << "age" << p->age
        << "score" << p->score << endl;
}



int main(){

    struct Student s = { "Mike",18,100 };
    struct Student s1 = { "Jack",19,99 };
    printStudent(s);

    struct Student* p = &s1; 
    printStudent1(p);
    
    system("pause");
    return 0;

}