adjust format

02.FactoryMethod/02.FactoryMethod.md

@@ -39,7 +39,7 @@ public:
 	AbstractSportProduct(){
  
 	}
-    virtual ~AbstractSportProduct(){}
+	virtual ~AbstractSportProduct(){}
 	//抽象方法：
 	virtual void printName() = 0;
 	virtual void play(){} = 0;
@@ -107,7 +107,7 @@ class AbstractFactory
 {
 public:
 	virtual AbstractSportProduct *getSportProduct() = 0;
-    virtual ~AbstractFactory(){}
+	virtual ~AbstractFactory(){}
 };
 ```
 
@@ -166,24 +166,24 @@ int main()
  
 	fac = new BasketballFactory();
 	product = fac->getSportProduct();
-    delete fac;
-    fac = nullptr;
-    delete product;
-    product = nullptr;
+	delete fac;
+	fac = nullptr;
+	delete product;
+	product = nullptr;
  
 	fac = new FootballFactory();
 	product = fac->getSportProduct();
-    delete fac;
-    fac = nullptr;
-    delete product;
-    product = nullptr;
+	delete fac;
+	fac = nullptr;
+	delete product;
+	product = nullptr;
  
 	fac = new VolleyballFactory();
 	product = fac->getSportProduct();	
-    delete fac;
-    fac = nullptr;
-    delete product;
-    product = nullptr;
+	delete fac;
+	fac = nullptr;
+	delete product;
+	product = nullptr;
  
 	system("pause");
 	return 0;