7.C++之结构体案例实现

通过案例完成对结构的巩固：巩固结构体和数组，结构体赋值，地址传递用数组接收；巩固随机数的产生。

在函数传值时，传入数组名，相当于传入地址，要么用指针接收要么用数组接收

#include
#include
using namespace std;
struct Student
{
	string name;
	int  age;
	string id;
};
void print(struct Student s[], int len)//使用数组接收，利用地址偏移来完成遍历
{
	for (int i = 0; i < len; i++)
	{
		cout << "name:" <
	struct Student s[2] =
	{
		{"jack",18,"003" },
		{"tom",19,"005"}
	};
	int len = sizeof(s) / sizeof(s[0]);
	print(s, len);//传入数组名，相当于传入首地址
	system("pause");
	return 0;
}

#include
#include
using namespace std;
struct Student
{
	string name;
	int  age;
	string id;
};
void print(struct Student* p, int len)
{
	for(int i =0; i
		cout << "name:" << p->name<<"tage:"<age<<"tid:"<id << endl;
		p++;
	}
}
int main()
{
	struct Student s[2] =
	{
		{"jack",18,"003" },
		{"tom",19,"005"}
	};
	int len = sizeof(s) / sizeof(s[0]);
	print(s, len);
	system("pause");
	return 0;
}

案例描述：3位老师给5名学生打分，设计老师和学生的结构体，其中在老师的结构体中有老师的姓名和存放5名学生的数组；在学生的结构体中包括学生姓名和分数。通过创建函数给老师和所对应的学生赋值，并通过函数打印输出

#include
#include
using namespace std;
struct Student
{
	string stu_name;
	int scores;
};//注意该处有分号
struct Teacher
{
	string tea_name;
	struct Student s[5];
};
//给老师分配学生
void Allocatespace(struct Teacher* p, int len)
{
	string name_seed = "ABCDE";
	for (int i = 0; i < len; i++)
	{
		p->tea_name = "techer_";
		p->tea_name += name_seed[i];
		for (int j = 0; j < 5; j++)
		{
			p->s[j].stu_name = "student_";
			p->s[j].stu_name += name_seed[j];
			int random = rand() % 20 + 80;
			p->s[j].scores = random;
		}
		p++;//主要要递增！！！！！！！！！！！！！
	}
}
//打印输出整个信息
void Printinfo(struct Teacher t[], int len)
{
	for (int i = 0; i < len; i++)
	{
		cout << "老师姓名：" << t[i].tea_name << endl;
		for (int j = 0; j < 5; j++)
		{
			cout << "学生姓名：" << t[i].s[j].stu_name << "**" << "学生的成绩：" << t[i].s[j].scores << endl;
		}
		cout << endl;
	}
}
int main()
{
	srand((unsigned int)time(NULL));
	struct Teacher t[3];
	int len = sizeof(t) / sizeof(t[0]);
	Allocatespace(t, len);
	Printinfo(t, len);
	system("pause");
	return 0;
}

案例描述：设计一个英雄的结构体，包括姓名、年龄；创建结构体数组，含有5个成员；通过冒泡排序的算法升序排序；打印输出

#include
#include
using namespace std;

struct Hero
{
	string name;
	int age;
};
void Sort(struct Hero h[], int len)
{
	for (int i = 0; i < len - 1; i++)
	{
		for (int j = 0; j < len - i - 1; j++)
		{
			if (h[j].age > h[j + 1].age)
			{
				struct Hero temp = h[j];
				h[j] = h[j + 1];
				h[j + 1] = temp;
			}
		}
	}
}
void Print(struct Hero h[], int len)
{
	for (int i = 0; i < len; i++)
	{
		cout << h[i].name << "t" << h[i].age << endl;
	}
}


int main()
{
	struct Hero h[5] =
	{
		{"张三",56},
		{"李四",35},
		{"王五",24},
		{"赵六",52},
		{"陈七",39}
	};
	int len = sizeof(h) / sizeof(h[0]);
	for (int i = 0; i < len; i++)
	{
		cout << h[i].name << "t" << h[i].age << endl;
	};
	Sort(h,len);
	cout << "************" << endl;;
	Print(h, len);
	system("pause");
	return 0;
}