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This article mainly explains "how to define GradeBook class". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn how to define GradeBook class.

Define a member function with no parameters

Here, the GradeBook class represents the gradebook in which the teacher can manage the students' examination results, and a GradeBook object is created in the main function. The main function uses this object and its member function to display a message welcoming the teacher to the scorebook program on the screen.

PS: the keyword class is followed by the class name GradeBook. By convention, user-defined class names begin with uppercase letters, and for readability, the first letter of each subsequent word in the class name is capitalized. At the same time, the body of each class is surrounded by a pair of curly braces ({and}). Class definition ends with a semicolon.

/ / Define class GradeBook with a member function displayMessage;// Create a GradeBook object and call its displayMessage function.#include using std::cout;using std::endl;// GradeBook class definitionclass GradeBook {public: / / function that displays a welcome message to the GradeBook user void displayMessage () {cout

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