diff --git a/button.py b/button.py
index 7fa359c..6a4757c 100644
--- a/button.py
+++ b/button.py
@@ -1,29 +1,32 @@
-import pygame.font
-
-
-class play_Button:
-    def __init__(self, ai_settings, screen, msg):
-        """初始化按钮的属性"""
-        self.screen = screen
-        self.screen_rect = screen.get_rect()
-        # 设置按钮的尺寸和其他属性
-        self.width, self.height = 200, 50  # 按钮的尺寸
-        self.button_color = (0, 0, 0)  # 按钮颜色
-        self.text_color = (255, 255, 255)  # 按钮中文本的颜色
-        self.font = pygame.font.SysFont(None, 48)
-        # 创建按钮的rect对象
-        self.rect = pygame.Rect(540, 300, self.width, self.height)
-        # self.rect.center = self.screen_rect.center
-        # 按钮的标签只需创建一次
-        self.prep_msg(msg)
-
-    def prep_msg(self, msg):
-        """将msg渲染为图像，并使其在按钮上居中"""
-        self.msg_image = self.font.render(msg, True, self.text_color, self.button_color)
-        self.msg_image_rect = self.msg_image.get_rect()
-        self.msg_image_rect.center = self.rect.center
-
-    def draw_button(self):
-        # 绘制一个用颜色填充的按钮，在绘制文本
-        self.screen.fill(self.button_color, self.rect)
-        self.screen.blit(self.msg_image, self.msg_image_rect)
+import pygame.font
+
+
+class play_Button:
+    def __init__(self, ai_settings, screen, msg):
+        """初始化按钮的属性"""
+        self.screen = screen
+        self.screen_rect = screen.get_rect()
+        # 设置按钮的尺寸和其他属性
+
+        self.width, self.height = 200, 50  # 按钮的尺寸
+        self.button_color = (0, 0, 0)  # 按钮颜色
+        self.text_color = (255, 255, 255)  # 按钮中文本的颜色
+        self.font = pygame.font.SysFont(None, 48)
+        # 创建按钮的rect对象
+
+        self.rect = pygame.Rect(540, 300, self.width, self.height)
+        # self.rect.center = self.screen_rect.center
+        
+        # 按钮的标签只需创建一次
+        self.prep_msg(msg)
+
+    def prep_msg(self, msg):
+        """将msg渲染为图像，并使其在按钮上居中"""
+        self.msg_image = self.font.render(msg, True, self.text_color, self.button_color)
+        self.msg_image_rect = self.msg_image.get_rect()
+        self.msg_image_rect.center = self.rect.center
+
+    def draw_button(self):
+        # 绘制一个用颜色填充的按钮，在绘制文本
+        self.screen.fill(self.button_color, self.rect)
+        self.screen.blit(self.msg_image, self.msg_image_rect)