Simulating Classes in C

In the C language, there is no direct support for the keyword “class,” but it is possible to simulate class functionality using structures and functions. One common method of simulating classes using structures and functions is as follows:

1. Define a struct (class): Use a struct to define the attributes and methods of a class.

typedef struct {
    // 属性
    int property1;
    float property2;
    // ...
} MyClass;

1. Define methods (functions): Use functions to define class methods.

// 方法1
void method1(MyClass* obj, int arg1) {
    // 访问属性
    obj->property1 = arg1;
    // ...
}

// 方法2
float method2(MyClass* obj) {
    // 访问属性
    return obj->property2;
    // ...
}

1. Create objects (instances): use structure variables to create instances of a class.

MyClass obj;

1. Method invocation: calling a class method through an object instance.

method1(&obj, 10);
float result = method2(&obj);

It should be noted that this method is just a simple simulation and does not implement advanced features such as access control and inheritance in classes. If more complex object-oriented programming features are needed, consider using languages like C++ that support classes.