嵌入式硬件设计模式你可以用C语言写一个示例吗
时间: 2024-01-23 13:02:30 浏览: 28
当然可以。以下是一个使用C语言编写的嵌入式硬件设计模式示例:
```
#include <stdio.h>
// 建立一个抽象基类
typedef struct {
void (*operation)(void);
} Component;
// 建立一个具体的类
typedef struct {
Component component;
char *name;
} ConcreteComponent;
void ConcreteComponent_operation(void) {
printf("ConcreteComponent_operation\n");
}
// 继承抽象基类并重写方法
typedef struct {
Component component;
Component *component_ptr;
} Decorator;
void Decorator_operation(void) {
Decorator *decorator = (Decorator*)this;
if (decorator->component_ptr != NULL) {
decorator->component_ptr->operation();
}
}
// 建立一个具体的修饰器
typedef struct {
Decorator decorator;
char *name;
} ConcreteDecorator;
void ConcreteDecorator_operation(void) {
ConcreteDecorator *concrete_decorator = (ConcreteDecorator*)this;
printf("ConcreteDecorator_operation: %s\n", concrete_decorator->name);
Decorator_operation(this);
}
int main() {
// 创建具体对象
ConcreteComponent concrete_component = {
.component = {
.operation = ConcreteComponent_operation
},
.name = "ConcreteComponent"
};
printf("ConcreteComponent:\n");
concrete_component.component.operation();
// 创建修饰器对象
Decorator decorator = {
.component = {
.operation = Decorator_operation
},
.component_ptr = NULL
};
ConcreteDecorator concrete_decorator = {
.decorator = decorator,
.name = "ConcreteDecorator"
};
concrete_decorator.decorator.component_ptr = &concrete_component.component;
printf("ConcreteDecorator:\n");
concrete_decorator.decorator.component.operation();
return 0;
}
```
这个示例实现了装饰器模式,通过继承抽象基类 Component 和 Decorator 并重写方法来实现具体的类和修饰器。在 main 函数中创建了一个具体对象和一个修饰器对象,并将它们组合在一起。最终输出了它们的操作结果。