一、结构体的定义
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struct Student{ string name; int age; int score;}; |
二、创建具体的变量（3种）
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struct Student s1;s1.name = "张三";s1.age = 18;s1.score = 90; |
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struct Student s1 = {"李四" ,19 , 80 }； |
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struct Student{ string name; int age; int score;}s3;s3.name = "王五";s3.age = 18;s3.score = 89; |
三、结构体数组
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struct Student stuArray[3] = { {"张三" , 20 , 92}, {"李四" , 18 , 89}, {"王五" , 24 , 95}};stuArray[2].name = "赵六";// 把王五改为赵六//遍历结构体数组for(int i =0; i < 3;i++){ cout << "姓名:" << stuArray[i].name << "年龄:" << stuArray[i].age << "分数:" << stuArray[i].score <<endl;} |
四、结构体指针
利用操作符-> 可以通过结构体指针访问结构体属性。
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struct Student s = {"张三", 18, 90};struct Student *p = &s;//通过指针访问结构体变量中的数据cout << "姓名:" << p->name << endl; |
五、结构体嵌套结构体
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struct student{ String name; int age; int score;}struct teacher{ int id; String name; int age; struct student stu;} |
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teacher t;t.stu.name; |
六、结构体做函数参数
1、值传递
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void printStudent(struct Student s1){ cout << "姓名:" <<s1.name << "年龄:" << s1.age << "分数" << s1.score;}int main(){ struct Student s1; s1.name = "张三"; s1.age = 18; s1.score = 95; printStudent(s1);} |
2、地址传递
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void printStudent(struct Student * s1){ cout << "姓名:" << p->name << "年龄:" << p->age << "分数" << p->score;}int main(){ struct Student s1; s1.name = "张三"; s1.age = 18; s1.score = 95; printStudent(&s1);} |
七、结构体中const使用场景
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void printStudent(const Student * s1){ cout << "姓名:" << p->name << "年龄:" << p->age << "分数" << p->score;}int main(){ struct Student s1; s1.name = "张三"; s1.age = 18; s1.score = 95; printStudent(&s1);} |
总结
本篇文章就到这里了，希望能够给你带来帮助，也希望您能够多多关注服务器之家的更多内容！
原文链接：https://blog.csdn.net/qq_26082507/article/details/120396912
