C++ 程序:检查数字是正数还是负数
原文:https://www.studytonight.com/cpp-programs/cpp-check-if-the-number-is-positive-or-negative-program
大家好!
在本教程中,我们将学习如何在 C++ 编程语言中确定输入的数字是正数还是负数。
这可以通过 C++ 中**if-else**
块的概念来实现(学习 C++ if-else )。
下面给出的注释代码将帮助您详细理解这个概念。
代号:
#include <iostream>
using namespace std;
int main()
{
cout << "\n\nWelcome to Studytonight :-)\n\n\n";
cout << " ===== Program to Check if the number is positive or negative ===== \n\n";
int num;
//taking user input
cout << "Enter any non-zero Number to be checked: ";
cin >> num;
//when the condition inside the if() is true, then it enters the code block
if (num > 0)
{
cout << "\nEntered number is positive";
}
else //when if is not executed then it moves to the else block
{
cout << "\nEntered number is negative";
}
cout << "\n\n\n";
return 0;
}
输出:
我们希望这篇文章能帮助你更好地理解 C++ 中if else
块的逻辑。如有任何疑问,请随时通过下面的评论区联系我们。
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