逻辑运算

#include <iostream>

using namespace std;

int main()
{
float a = 3.5, b = 2.2, c = 0;
cout << "a = " << a << " b = " << b << " c = " << c << endl;

//与运算
cout << "a&&b=" << (a&&b) << endl;
cout << "a&&c=" << (a&&c) << endl;

//或运算
cout << "a||b=" << (a || b) << endl;
cout << "a||c=" << (a || c) << endl;

//非运算
cout << "!a=" << !a << endl << "!c=" << !c << endl;

//关系运算和逻辑运算
bool flag = a >= 0 && a <= 5; //变量a在[0,5]区间内
cout << "a=>0 && a<=5=" << flag << endl;

//算术运算、关系运算和逻辑运算
cout << "a+5>2*b+2||a<b+3=" << (a + 5 > 2 * b + 2 || a < b + 3) << endl;

return 0;
}