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bugfix: add destructors

master
Qiangguo Feng 2021-10-11 13:21:26 +08:00 committed by GitHub
parent 3614b77b9e
commit c103bb8897
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 30 additions and 22 deletions
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52
15.CommandPattern/2.Code/CommandPattern.h
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@ -5,22 +5,22 @@
#include <time.h> #include <time.h>
using namespace std; using namespace std;
// 命令队列类 // 命令队列类
#define COMMAND_QUEUE #define COMMAND_QUEUE
// 抽象命令类 Command // 抽象命令类 Command
class Command class Command
{ {
public: public:
Command(){} Command(){}
virtual ~Command(){} virtual ~Command(){}
// 声明抽象接口：发送命令 // 声明抽象接口：发送命令
virtual void execute() = 0; virtual void execute() = 0;
private: private:
Command *command; Command *command;
}; };
// 接收者：电灯类 // 接收者：电灯类
class Lamp class Lamp
{ {
public : public :
@ -42,7 +42,7 @@ private:
bool lampState; bool lampState;
}; };
// 接收者：风扇类 // 接收者：风扇类
class Fan class Fan
{ {
public: public:
@ -64,15 +64,19 @@ private:
bool fanState; bool fanState;
}; };
// 具体命令类 LampCommand // 具体命令类 LampCommand
class LampCommand :public Command class LampCommand :public Command
{ {
public: public:
LampCommand(){ LampCommand(){
printf("开关控制电灯\n"); printf("开关控制电灯\n");
lamp = new Lamp(); lamp = new Lamp();
} }
// 实现execute() ~LampCommand(){
delete lamp;
lamp = nullptr;
}
// 实现execute()
void execute(){ void execute(){
if (lamp->getLampState()){ if (lamp->getLampState()){
lamp->off(); lamp->off();
@ -85,15 +89,19 @@ private:
Lamp *lamp; Lamp *lamp;
}; };
// 具体命令类 FanCommand // 具体命令类 FanCommand
class FanCommand :public Command class FanCommand :public Command
{ {
public: public:
FanCommand(){ FanCommand(){
printf("开关控制风扇\n"); printf("开关控制风扇\n");
fan = new Fan(); fan = new Fan();
} }
// 实现execute() ~FanCommand(){
delete lamp;
lamp = nullptr;
}
// 实现execute()
void execute(){ void execute(){
if (fan->getFanState()){ if (fan->getFanState()){
fan->off(); fan->off();
@ -106,18 +114,18 @@ private:
Fan *fan; Fan *fan;
}; };
// 调用者 Button // 调用者 Button
class Button class Button
{ {
public: public:
Button(){} Button(){}
// 注入具体命令类对象 // 注入具体命令类对象
void setCommand(Command *cmd){ void setCommand(Command *cmd){
this->command = cmd; this->command = cmd;
} }
// 发送命令：触摸按钮 // 发送命令：触摸按钮
void touch(){ void touch(){
printf("触摸开关:"); printf("触摸开关:");
command->execute(); command->execute();
} }
private: private:
@ -126,10 +134,10 @@ private:
#ifdef COMMAND_QUEUE #ifdef COMMAND_QUEUE
/*************************************/ /*************************************/
/* 命令队列 */ /* 命令队列 */
#include <vector> #include <vector>
// 命令队列类 // 命令队列类
class CommandQueue class CommandQueue
{ {
public: public:
@ -149,18 +157,18 @@ private:
}; };
// 调用者 // 调用者
class Button2 class Button2
{ {
public: public:
Button2(){} Button2(){}
// 注入具体命令队列类对象 // 注入具体命令队列类对象
void setCommandQueue(CommandQueue *cmdQueue){ void setCommandQueue(CommandQueue *cmdQueue){
this->cmdQueue = cmdQueue; this->cmdQueue = cmdQueue;
} }
// 发送命令：触摸按钮 // 发送命令：触摸按钮
void touch(){ void touch(){
printf("触摸开关:"); printf("触摸开关:");
cmdQueue->execute(); cmdQueue->execute();
} }
private: private:
@ -170,4 +178,4 @@ private:
#endif #endif
#endif //__COMMAND_PATTERN_H__ #endif //__COMMAND_PATTERN_H__