C语言结构体排序方法

#include "stdafx.h"
#include
#include
#include
using namespace std;
struct student
{
	string name;//姓名
	int math;//数学成绩
	int english;//英语
};
int c =0;//控制排序规则
bool compare(student a, student b)
{
	if (c == 0)//按照姓名递增排序
	{
		return (a.name<=b.name);
	}
	else if (c == 1)//按照数学成绩递增排序
	{
		return (a.math <= b.math);
	}
	else//按照英语成绩递增排序
	{
		return (a.english <= b.english);
	}
}
int _tmain(int argc, _TCHAR* argv[])
{
	student array[3];

	array[0].name = "John";
	array[0].math = 86;
	array[0].english = 91;

	array[1].name = "Michelle";
	array[1].math = 85;
	array[1].english =95;

	array[2].name = "Kim";
	array[2].math = 89;
	array[2].english = 60;
	cout << "原始顺序：" << endl;
	for (int i = 0; i <3; i++)
		cout << array[i].name << ' ' << array[i].math << ' ' << array[i].english << endl;
	cout << "按姓名递增排序：" << endl;
	c =0;
	sort(array,array+3,compare);
	for (int i = 0; i <3;i++)
		cout << array[i].name << ' ' << array[i].math << ' ' << array[i].english << endl;
	cout << "按数学成绩递增排序：" << endl;
	c =1;
	sort(array, array + 3, compare);
	for (int i = 0; i <3; i++)
		cout << array[i].name << ' ' << array[i].math << ' ' << array[i].english << endl;
	system("pause");
	return 0;
}