3.1算术运算符

# 3.1算术运算符

#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;
}

# 2.8数据的输入

#include <iostream>
using namespace std;

int main2_8()
{
	//1.整型
	/* int a = 0;
	cout << "a=" << endl;
	cin >> a;
	cout << "a=" << a << endl;
	*/

	//2.浮点型
	//float f = 3.14f;
	//cout << "f=" << endl;
	//cin >> f;
	//cout << "f=" << endl;
	//3.字符型

	//4.字符串型

	//5.布尔类型


	system("pause");
	return 0;
}