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This article shows you what ways to pass parameters in C++, the content is concise and easy to understand, it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

Value transfer

As we all know, the parameter in the parenthesis of the function definition is a formal parameter, which is a special local variable within the function, which means that the function receives a copy of the actual parameter. If the value of the parameter is changed inside the function, it has no effect on the actual parameter.

# include using namespace std;void change (int formalNum) {formalNum = 0; cout

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