diff --git a/notes/设计模式.md b/notes/设计模式.md
index 8c9f0b22..c177ff92 100644
--- a/notes/设计模式.md
+++ b/notes/设计模式.md
@@ -276,6 +276,7 @@ public class ConcreteProduct2 implements Product {
 
 ```java
 public class Client {
+
     public static void main(String[] args) {
         int type = 1;
         Product product;
@@ -295,6 +296,7 @@ public class Client {
 
 ```java
 public class SimpleFactory {
+
     public Product createProduct(int type) {
         if (type == 1) {
             return new ConcreteProduct1();
@@ -308,6 +310,7 @@ public class SimpleFactory {
 
 ```java
 public class Client {
+
     public static void main(String[] args) {
         SimpleFactory simpleFactory = new SimpleFactory();
         Product product = simpleFactory.createProduct(1);