运算符重载（），[]

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

class yunsuan
{
private:
	int a, b, c;
	int len,num;
	char name[30];

public:
	yunsuan(int d=0, int e=0, int f=0 , int r=0, int t=0) :a(d), b(e), c(f) , len(r) , num(t){strcpy_s(name,"666");};
	~yunsuan() {};

	void operator()(int d , int e , int f);

	int &operator[](const char *m);

	void operator+(yunsuan &num1);

	void show(void)
	{
		cout << a << " " << b << " " << c << " ";
		cout << " [ " << name << " ] " << " " << len << " " << num << endl;
	}
	
	void get_data(void)
	{
		cout << " a:" << a << " b:" << b << " c:" << c << " len:" << len << " num:" << num << " name:"<< name << endl;
	}
	
};


void yunsuan::operator()(int d , int e , int f)
{
	a = d;
	b = e;
	c = f;
}

int &yunsuan::operator[](const char *m)
{
	len = strlen(m);
	strcpy_s(this->name,m);
	return this->num;
}

void yunsuan::operator+(yunsuan &num1)//加法运算重载
{
	this->a += num1.a ;
	this->b += num1.b ;
	this->c += num1.c ;
}


int main(void)
{
	int n;
	cout << "输入编号:";
	cin>>n;
	yunsuan shu;
	shu.show();
	shu(1,2,3);
	shu["张三"] = n;
	yunsuan shu1(10,9,8);
	yunsuan shu2(7,6,5);
	shu+shu1;
	shu.show();
	system("pause");
	return 0;
}