fix bug

fix segmentation fault and revise file name

21.StatePattern/2.Code/GameAccount.cpp

@@ -19,7 +19,12 @@ GameAccount::GameAccount(string iName){
 	name = iName;
 	setLevel(new Primary(this));
 }
-
+GameAccount::~GameAccount(){
+	if(level){
+		delete level;
+		level = nullptr;
+	}
+}
 void GameAccount::setLevel(Level* iLevel){
 	if(level != nullptr){
 		delete level;
@@ -48,6 +53,7 @@ void GameAccount::playCard(){
 	this->level->upgradeLevel();
 }
 
+
 void GameAccount::win(){
 	if (this->getScore() < 200){
 		setScore(getScore() + 50);

21.StatePattern/2.Code/GameAccount.h

@@ -13,12 +13,7 @@ public:
 	GameAccount(string iName);
 	GameAccount(const GameAccount&) = delete;
 	GameAccount& operator=(const GameAccount&) = delete;
-	~GameAccount(){
-		if(level){
-			delete level;
-			level = nullptr;
-		}
-	}
+	~GameAccount();
 	string getName();
 	void win();
 	void lose();
@@ -33,4 +28,4 @@ private:
 	string name;
 };
 
-#endif
+#endif

21.StatePattern/2.Code/Level.cpp

@@ -66,7 +66,6 @@ Secondary::Secondary(){
 
 Secondary::Secondary(Level* level){
 	this->setGameAccount(level->getGameAccount());
-	getGameAccount()->setLevel(level);
 }
 
 void Secondary::doubleScore(){
@@ -99,7 +98,6 @@ Professional::Professional(){
 
 Professional::Professional(Level* level){
 	this->setGameAccount(level->getGameAccount());
-	getGameAccount()->setLevel(level);
 }
 
 void Professional::doubleScore(){
@@ -132,7 +130,6 @@ Final::Final(){
 
 Final::Final(Level* level){
 	this->setGameAccount(level->getGameAccount());
-	getGameAccount()->setLevel(level);
 }
 
 void Final::doubleScore(){