c++ cdi+示例

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

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

The or keyword returns 1 if the result of at least one operand is 1, and it returns 0 if all operands result is 0.

如果至少一个操作数的结果为1，则or关键字返回1；如果所有操作数的结果为0，则or关键字返回0。

Syntax:

句法：

    operand_1 or 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 or b==30);
Output:
result = 1

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

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

Output:

输出：

true
true
true

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

c++ cdi+示例