c++ cdi+示例

"and" is an inbuilt keyword that has been around since at least C++98. It is an alternative to && (Logical AND) operator and it mostly uses with the conditions.

“ and”是一个内置关键字，至少从C ++ 98起就存在。 它是&& ( 逻辑AND )运算符的替代方法，它通常与条件一起使用。

The and keyword returns 1 if the result of all operands is 1, and it returns 0 if the result of any condition is 0.

如果所有操作数的结果均为1，则and关键字将返回1，如果任何条件的结果为0，则它​​将返回0。

Syntax:

句法：

    operand_1 and operand_2;

Here, operand_1 and operand_2 are the operands.

在这里，操作数_1和操作数_2是操作数。

Example:

例：

    Input:
a = 10;
b = 20;
result = (a==10 and b==20);
Output:
result = 1

演示使用“ and”关键字的C ++示例 (C++ example to demonstrate the use of "and" keyword)

Example 1:

范例1：

// C++ example to demonstrate the use of
// 'and' operator.
#include <iostream>
using namespace std;
int main()
{int num = 20;
if (num >= 10 and num <= 50)
cout << "true\n";
else
cout << "false\n";
if (num >= 20 and num <= 50)
cout << "true\n";
else
cout << "false\n";
if (num > 50 and num <= 100)
cout << "true\n";
else
cout << "false\n";
return 0;
}

Output:

输出：

true
true
false

Example 2:

范例2：

// Input name, age, height and weight
// check you are eligible for the
// army selection or not?
#include <iostream>
using namespace std;
int main()
{string name;
int age;
float height, weight;
cout << "Enter name: ";
cin >> name;
cout << "Enter age: ";
cin >> age;
cout << "Enter height (in cm): ";
cin >> height;
cout << "Enter weight (in kg): ";
cin >> weight;
if (age >= 18 and height >= 165 and weight >= 55)
cout << name << " , you're selected.";
else
cout << name << " , you're not selected.";
return 0;
}

Output:

输出：

RUN 1:
Enter name: Shivang
Enter age: 23
Enter height (in cm): 172
Enter weight (in kg): 67
Shivang , you're selected.
RUN 2:
Enter name: Akash
Enter age: 19
Enter height (in cm): 157
Enter weight (in kg): 70
Akash , you're not selected.

翻译自: https://www.includehelp.com/cpp-tutorial/and-keyword-with-example.aspx

c++ cdi+示例