c++运算符

#include <iostream>

//运算符

using namespace std;
int main () {
    int a = 9;
    int b = 6;
    cout<<"这是加法:"<<a+b<<endl;
    cout<<"这是减法:"<<a-b<<endl;
    cout<<"这是乘法:"<<a*b<<endl;
    cout<<"这是取整（只要小数点前面的数字）:"<<a/b<<endl;
    cout<<"这是正常的除法:"<<a*1.0 / b <<endl;

    a = 1000000000;
    b = 10000000;
    cout<<"这时a*b会超出int的范围:"<<a*b<<endl;
    cout<<"可以这样子操作换一个类型:"<<(long long)a*b<<endl;

    //字符也可以进行运算
    char A = 'A';
    cout<<"这是正常的A:"<<A<<endl;
    A += 1;
    cout<<"这是A+1:"<<A<<endl;

    return 0;
}

这是输出结果