#include <iostream>
using namespace std;
/*
/=
*=
%=
*/
int main()
{
	int a = 2;
	a += 2;
	cout << a << endl;
	system("pause");
	return 0;
}

#include <iostream>
using namespace std;

int main()
{
	int a = 10;
	int b = 3;
	cout << a / b << endl;
	//整数相除，仍然是整数
	cout << a%b << endl;//取余数
	//小数不能取余
	++a;
	cout<<
	system("pause");
	return 0;
}