use of logical ‘||’with constant operand
时间: 2023-12-06 18:05:20 浏览: 280
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The logical '||' operator is used in programming languages to perform a logical OR operation. When using the '||' operator, if any of the operands (either constant or variable) evaluate to true, the result of the expression will be true. If both operands are false, then the result will be false.
Here's an example of using the logical '||' operator with a constant operand in C++:
```cpp
#include <iostream>
using namespace std;
int main() {
int age = 25;
if (age < 18 || age > 60) {
cout << "You are either under 18 or over 60." << endl;
} else {
cout << "You are between 18 and 60." << endl;
}
return 0;
}
```
In this example, the logical OR operator '||' is used to check if the age variable is either less than 18 or greater than 60. If either condition is true, the message "You are either under 18 or over 60" will be displayed. Otherwise, the message "You are between 18 and 60" will be displayed.
You can also use constants as operands with the logical '||' operator in a similar way to variables. The behavior remains the same; if any of the operands (constant or variable) evaluate to true, the overall result will be true.
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