diff --git a/alien.py b/alien.py
new file mode 100644
index 0000000..ca9fe9b
--- /dev/null
+++ b/alien.py
@@ -0,0 +1,39 @@
+import pygame
+
+from pygame.sprite import Sprite
+
+
+class Alien(Sprite):
+    """A class to represent a single alien in the fleet."""
+
+    def __init__(self, ai_game):
+        """Initialize the alien and set its starting position."""
+        super().__init__()
+        self.screen = ai_game.screen
+        self.settings = ai_game.settings
+
+        # Load the alien image and set its rect attribute.
+        self.original_image = pygame.image.load('images\外星人2.png')
+        alien_width = 75  
+        alien_height = 50  
+  
+        # 调整图片大小  
+        self.image = pygame.transform.scale(self.original_image, (alien_width, alien_height))
+        self.rect = self.image.get_rect()
+
+        # Start each new alien near the top left of the screen.
+        self.rect.x = self.rect.width
+        self.rect.y = self.rect.height
+
+        # Store the alien's exact horizontal position.
+        self.x = float(self.rect.x)
+
+    def check_edges(self):
+        """Return True if alien is at edge of screen."""
+        screen_rect = self.screen.get_rect()
+        return (self.rect.right >= screen_rect.right) or (self.rect.left <= 0)
+
+    def update(self):
+        """Move the alien right or left."""
+        self.x += self.settings.alien_speed * self.settings.fleet_direction
+        self.rect.x = self.x
\ No newline at end of file
diff --git a/alien_invasion.py b/alien_invasion.py
new file mode 100644
index 0000000..7991b72
--- /dev/null
+++ b/alien_invasion.py
@@ -0,0 +1,253 @@
+import sys
+from time import sleep
+
+import pygame
+from settings import Settings
+from game_stats import GameStats
+from scoreboard import Scoreboard
+from button import Button
+from ship import Ship
+from bullet import Bullet
+from alien import Alien
+
+class AlienInvasion:
+    """Overall class to manage game assets and behavior."""
+   
+    def __init__(self,index):
+        """Initialize the game, and create game resources."""
+        pygame.init()
+        self.clock = pygame.time.Clock()
+        self.settings = Settings()
+        self.screen = pygame.display.set_mode(
+            (self.settings.screen_width, self.settings.screen_height))
+       
+        pygame.display.set_caption("外星人入侵") 
+        # self.screen.blit(self.background_image, (0, 0))  
+        # pygame.display.flip()  
+        self.stats = GameStats(self)
+        self.sb = Scoreboard(self,index)
+
+        self.ship = Ship(self,index)
+        
+        self.bullets = pygame.sprite.Group()
+        self.aliens = pygame.sprite.Group()
+
+        self._create_fleet()
+
+        # Start Alien Invasion in an inactive state.
+        self.game_active = False
+
+        # Make the Play button.
+        self.play_button = Button(self, "Play") 
+  
+
+    def run_game(self,selected_image_path):
+        """Start the main loop for the game."""
+        while True:
+            self._check_events(selected_image_path)
+
+            if self.game_active:
+                self.ship.update()
+                self._update_bullets()
+                self._update_aliens(selected_image_path)
+
+            self._update_screen()
+            self.clock.tick(60)
+
+    def _check_events(self,selected_image_path):
+        """Respond to keypresses and mouse events."""
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                sys.exit()
+            elif event.type == pygame.KEYDOWN:
+                self._check_keydown_events(event)
+            elif event.type == pygame.KEYUP:
+                self._check_keyup_events(event)
+            elif event.type == pygame.MOUSEBUTTONDOWN:
+                mouse_pos = pygame.mouse.get_pos()
+                self._check_play_button(mouse_pos,selected_image_path)
+
+    def _check_play_button(self, mouse_pos,selected_image_path):
+        """Start a new game when the player clicks Play."""
+        button_clicked = self.play_button.rect.collidepoint(mouse_pos)
+        if button_clicked and not self.game_active:
+            # Reset the game settings.
+            self.settings.initialize_dynamic_settings()
+
+            # Reset the game statistics.
+            self.stats.reset_stats()
+            self.sb.prep_score()
+            self.sb.prep_level()
+            self.sb.prep_ships(selected_image_path)
+            self.game_active = True
+
+            # Get rid of any remaining bullets and aliens.
+            self.bullets.empty()
+            self.aliens.empty()
+
+            # Create a new fleet and center the ship.
+            self._create_fleet()
+            self.ship.center_ship()
+
+            # Hide the mouse cursor.
+            pygame.mouse.set_visible(False)
+
+    def _check_keydown_events(self, event):
+        """Respond to keypresses."""
+        if event.key == pygame.K_RIGHT:
+            self.ship.moving_right = True
+        elif event.key == pygame.K_LEFT:
+            self.ship.moving_left = True
+        elif event.key == pygame.K_q:
+            sys.exit()
+        elif event.key == pygame.K_SPACE:
+            self._fire_bullet()
+
+    def _check_keyup_events(self, event):
+        """Respond to key releases."""
+        if event.key == pygame.K_RIGHT:
+            self.ship.moving_right = False
+        elif event.key == pygame.K_LEFT:
+            self.ship.moving_left = False
+
+    def _fire_bullet(self):
+        """Create a new bullet and add it to the bullets group."""
+        if len(self.bullets) < self.settings.bullets_allowed:
+            new_bullet = Bullet(self)
+            self.bullets.add(new_bullet)
+
+    def _update_bullets(self):
+        """Update position of bullets and get rid of old bullets."""
+        # Update bullet positions.
+        self.bullets.update()
+
+        # Get rid of bullets that have disappeared.
+        for bullet in self.bullets.copy():
+            if bullet.rect.bottom <= 0:
+                self.bullets.remove(bullet)
+
+        self._check_bullet_alien_collisions()
+
+    def _check_bullet_alien_collisions(self):
+        """Respond to bullet-alien collisions."""
+        # Remove any bullets and aliens that have collided.
+        collisions = pygame.sprite.groupcollide(
+                self.bullets, self.aliens, True, True)
+
+        if collisions:
+            for aliens in collisions.values():
+                self.stats.score += self.settings.alien_points * len(aliens)
+            self.sb.prep_score()
+            self.sb.check_high_score()
+
+        if not self.aliens:
+            # Destroy existing bullets and create new fleet.
+            self.bullets.empty()
+            self._create_fleet()
+            self.settings.increase_speed()
+
+            # Increase level.
+            self.stats.level += 1
+            self.sb.prep_level()
+
+    def _ship_hit(self,selected_image_path):
+        """Respond to the ship being hit by an alien."""
+        if self.stats.ships_left > 0:
+            # Decrement ships_left, and update scoreboard.
+            self.stats.ships_left -= 1
+            self.sb.prep_ships(selected_image_path)
+
+            # Get rid of any remaining bullets and aliens.
+            self.bullets.empty()
+            self.aliens.empty()
+
+            # Create a new fleet and center the ship.
+            self._create_fleet()
+            self.ship.center_ship()
+
+            # Pause.
+            sleep(0.5)
+        else:
+            self.game_active = False
+            pygame.mouse.set_visible(True)
+
+    def _update_aliens(self,selected_image_path):
+        """Check if the fleet is at an edge, then update positions."""
+        self._check_fleet_edges()
+        self.aliens.update()
+
+        # Look for alien-ship collisions.
+        if pygame.sprite.spritecollideany(self.ship, self.aliens):
+            self._ship_hit(selected_image_path)
+
+        # Look for aliens hitting the bottom of the screen.
+        self._check_aliens_bottom(selected_image_path)
+
+    def _check_aliens_bottom(self,selected_image_path):
+        """Check if any aliens have reached the bottom of the screen."""
+        for alien in self.aliens.sprites():
+            if alien.rect.bottom >= self.settings.screen_height:
+                # Treat this the same as if the ship got hit.
+                self._ship_hit(selected_image_path)
+                break
+
+    def _create_fleet(self):
+        """Create the fleet of aliens."""
+        # Create an alien and keep adding aliens until there's no room left.
+        # Spacing between aliens is one alien width and one alien height.
+        alien = Alien(self)
+        alien_width, alien_height = alien.rect.size
+
+        current_x, current_y = alien_width, alien_height
+        while current_y < (self.settings.screen_height - 3 * alien_height):
+            while current_x < (self.settings.screen_width - 2 * alien_width):
+                self._create_alien(current_x, current_y)
+                current_x += 2 * alien_width
+
+            # Finished a row; reset x value, and increment y value.
+            current_x = alien_width
+            current_y += 2 * alien_height
+
+    def _create_alien(self, x_position, y_position):
+        """Create an alien and place it in the fleet."""
+        new_alien = Alien(self)
+        new_alien.x = x_position
+        new_alien.rect.x = x_position
+        new_alien.rect.y = y_position
+        self.aliens.add(new_alien)
+
+    def _check_fleet_edges(self):
+        """Respond appropriately if any aliens have reached an edge."""
+        for alien in self.aliens.sprites():
+            if alien.check_edges():
+                self._change_fleet_direction()
+                break
+
+    def _change_fleet_direction(self):
+        """Drop the entire fleet and change the fleet's direction."""
+        for alien in self.aliens.sprites():
+            alien.rect.y += self.settings.fleet_drop_speed
+        self.settings.fleet_direction *= -1
+
+    def _update_screen(self):
+        """Update images on the screen, and flip to the new screen."""
+        self.screen.fill(self.settings.bg_color)
+        for bullet in self.bullets.sprites():
+            bullet.draw_bullet()
+        self.ship.blitme()
+        self.aliens.draw(self.screen)
+
+        # Draw the score information.
+        self.sb.show_score()
+
+        # Draw the play button if the game is inactive.
+        if not self.game_active:
+            self.play_button.draw_button()
+
+        pygame.display.flip()
+
+
+# if __name__ == '__main__':
+#     # Make a game instance, and run the game.
+#     ai = AlienInvasion()
+#     ai.run_game()
\ No newline at end of file
diff --git a/bullet.py b/bullet.py
new file mode 100644
index 0000000..2625e1b
--- /dev/null
+++ b/bullet.py
@@ -0,0 +1,31 @@
+import pygame
+from pygame.sprite import Sprite
+
+class Bullet(Sprite):
+    """A class to manage bullets fired from the ship."""
+
+    def __init__(self, ai_game):
+        """Create a bullet object at the ship's current position."""
+        super().__init__()
+        self.screen = ai_game.screen
+        self.settings = ai_game.settings
+        self.color = (255, 0,0)
+      
+        # Create a bullet rect at (0, 0) and then set correct position.
+        self.rect = pygame.Rect(0, 0, self.settings.bullet_width,
+            self.settings.bullet_height)
+        self.rect.midtop = ai_game.ship.rect.midtop
+
+        # Store the bullet's position as a float.
+        self.y = float(self.rect.y)
+
+    def update(self):
+        """Move the bullet up the screen."""
+        # Update the exact position of the bullet.
+        self.y -= self.settings.bullet_speed
+        # Update the rect position.
+        self.rect.y = self.y
+
+    def draw_bullet(self):
+        """Draw the bullet to the screen."""
+        pygame.draw.rect(self.screen, self.color, self.rect)
\ No newline at end of file
diff --git a/button.py b/button.py
new file mode 100644
index 0000000..1a726e2
--- /dev/null
+++ b/button.py
@@ -0,0 +1,35 @@
+import pygame.font
+
+
+class Button:
+    """A class to build buttons for the game."""
+
+    def __init__(self, ai_game, msg):
+        """Initialize button attributes."""
+        self.screen = ai_game.screen
+        self.screen_rect = self.screen.get_rect()
+
+        # Set the dimensions and properties of the button.
+        self.width, self.height = 200, 50
+        self.button_color = (0, 135, 0)
+        self.text_color = (255, 255, 255)
+        self.font = pygame.font.SysFont(None, 48)
+
+        # Build the button's rect object and center it.
+        self.rect = pygame.Rect(0, 0, self.width, self.height)
+        self.rect.center = self.screen_rect.center
+
+        # The button message needs to be prepped only once.
+        self._prep_msg(msg)
+
+    def _prep_msg(self, msg):
+        """Turn msg into a rendered image and center text on the button."""
+        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):
+        """Draw blank button and then draw message."""
+        self.screen.fill(self.button_color, self.rect)
+        self.screen.blit(self.msg_image, self.msg_image_rect)
\ No newline at end of file
diff --git a/category.py b/category.py
new file mode 100644
index 0000000..918bfa0
--- /dev/null
+++ b/category.py
@@ -0,0 +1,65 @@
+import tkinter as tk  
+from PIL import Image, ImageTk  
+from alien_invasion import AlienInvasion
+class ImageSwitcher:  
+    def __init__(self, master, images_paths):  
+        self.master = master  
+        self.master.title("选择你想要的飞机")  
+        self.images = []  
+        self.image_frames = []  
+        self.current_image_index = 0    
+        rows = (len(images_paths) - 1) // 3 + 1  
+        column = 0  
+        row = 0  
+  
+        for i, path in enumerate(images_paths):  
+            frame = tk.Frame(master)  
+            img = Image.open(path)  
+            img = img.resize((400, 260), Image.BICUBIC)  
+            img_tk = ImageTk.PhotoImage(img)  
+            self.images.append(img_tk)  
+            image_label = tk.Label(frame, image=img_tk)  
+            image_label.grid(row=0, column=0, padx=5, pady=5)  # 在frame内部使用grid  
+              
+            button = tk.Button(frame, text=f"选择飞机 {i+1}", command=lambda index=i: self.switch_image(index),  
+                               font=("Arial", 18), padx=10, pady=5)  
+            button.grid(row=0, column=1, padx=5, pady=5)  # 在frame内部与图片并排  
+              
+            # 将frame添加到master中，但注意使用grid而不是pack  
+            frame.grid(row=row, column=column, padx=10, pady=10)  
+              
+            # 更新行列索引以进行下一组图片和按钮的放置  
+            column += 2  # 因为每个frame包含1个图片和1个按钮，所以column增加2  
+            if column >= 3:  # 假设每行3个组合  
+                column = 0  
+                row += 1  
+  
+        # 添加"确定"按钮到master的底部  
+        button_show = tk.Button(master, text="确定", command=self.on_button_click,  
+                                font=("Arial", 18), padx=10, pady=5)  
+        button_show.grid(row=rows, column=0, columnspan=3, pady=10)  # 使其横跨3列
+    def show_current_image(self):  
+        for frame in self.image_frames:  
+            frame.pack_forget()  
+        current_frame = self.image_frames[self.current_image_index]  
+        current_frame.pack(pady=10)  
+  
+    def switch_image(self, index):  
+        if 0 <= index < len(self.images):  
+            self.current_image_index = index  
+            self.show_current_image()  
+  
+    def on_button_click(self):  
+        selected_image_path = images_paths[self.current_image_index]  
+        alien_invasion = AlienInvasion(selected_image_path)  
+        alien_invasion.run_game(selected_image_path)  
+        self.master.destroy()  
+        print(f"用户选择了图片: {selected_image_path}")  
+images_paths = ["images\火箭1.png", "images\火箭2.png", "images\火箭3.png","images\火箭4.png"]  
+
+def category():
+    root = tk.Tk()  
+    root.geometry("1200x700")
+    root.configure(background='#666666')  # 白色背景  
+    app = ImageSwitcher(root, images_paths)
+    root.mainloop()
diff --git a/game_stats.py b/game_stats.py
new file mode 100644
index 0000000..ed0971b
--- /dev/null
+++ b/game_stats.py
@@ -0,0 +1,16 @@
+class GameStats:
+    """Track statistics for Alien Invasion."""
+
+    def __init__(self, ai_game):
+        """Initialize statistics."""
+        self.settings = ai_game.settings
+        self.reset_stats()
+
+        # High score should never be reset.
+        self.high_score = 0
+
+    def reset_stats(self):
+        """Initialize statistics that can change during the game."""
+        self.ships_left = self.settings.ship_limit
+        self.score = 0
+        self.level = 1
\ No newline at end of file
diff --git a/images/background.jpg b/images/background.jpg
new file mode 100644
index 0000000..c910dc8
Binary files /dev/null and b/images/background.jpg differ
diff --git a/images/外星人2.png b/images/外星人2.png
new file mode 100644
index 0000000..9d2cb0b
Binary files /dev/null and b/images/外星人2.png differ
diff --git a/images/火箭1.png b/images/火箭1.png
new file mode 100644
index 0000000..91947d7
Binary files /dev/null and b/images/火箭1.png differ
diff --git a/images/火箭2.png b/images/火箭2.png
new file mode 100644
index 0000000..c3b7dab
Binary files /dev/null and b/images/火箭2.png differ
diff --git a/images/火箭3.png b/images/火箭3.png
new file mode 100644
index 0000000..8bf82ab
Binary files /dev/null and b/images/火箭3.png differ
diff --git a/images/火箭4.png b/images/火箭4.png
new file mode 100644
index 0000000..3b08789
Binary files /dev/null and b/images/火箭4.png differ
diff --git a/images/背景图.jpg b/images/背景图.jpg
new file mode 100644
index 0000000..3a66ee0
Binary files /dev/null and b/images/背景图.jpg differ
diff --git a/scoreboard.py b/scoreboard.py
new file mode 100644
index 0000000..28c03e6
--- /dev/null
+++ b/scoreboard.py
@@ -0,0 +1,83 @@
+import pygame.font
+from pygame.sprite import Group
+
+from ship import Ship
+
+
+class Scoreboard:
+    """A class to report scoring information."""
+
+    def __init__(self, ai_game,index):
+        """Initialize scorekeeping attributes."""
+        self.ai_game = ai_game
+        self.screen = ai_game.screen
+        self.screen_rect = self.screen.get_rect()
+        self.settings = ai_game.settings
+        self.stats = ai_game.stats
+
+        # Font settings for scoring information.
+        self.text_color = (30, 30, 30)
+        self.font = pygame.font.SysFont(None, 48)
+
+        # Prepare the initial score images.
+        self.prep_score()
+        self.prep_high_score()
+        self.prep_level()
+        self.prep_ships(index)
+
+    def prep_score(self):
+        """Turn the score into a rendered image."""
+        rounded_score = round(self.stats.score, -1)
+        score_str = f"{rounded_score:,}"
+        self.score_image = self.font.render(score_str, True,
+                self.text_color, self.settings.bg_color)
+
+        # Display the score at the top right of the screen.
+        self.score_rect = self.score_image.get_rect()
+        self.score_rect.right = self.screen_rect.right - 20
+        self.score_rect.top = 20
+
+    def prep_high_score(self):
+        """Turn the high score into a rendered image."""
+        high_score = round(self.stats.high_score, -1)
+        high_score_str = f"{high_score:,}"
+        self.high_score_image = self.font.render(high_score_str, True,
+                self.text_color, self.settings.bg_color)
+        
+        # Center the high score at the top of the screen.
+        self.high_score_rect = self.high_score_image.get_rect()
+        self.high_score_rect.centerx = self.screen_rect.centerx
+        self.high_score_rect.top = self.score_rect.top
+
+    def prep_level(self):
+        """Turn the level into a rendered image."""
+        level_str = str(self.stats.level)
+        self.level_image = self.font.render(level_str, True,
+                self.text_color, self.settings.bg_color)
+
+        # Position the level below the score.
+        self.level_rect = self.level_image.get_rect()
+        self.level_rect.right = self.score_rect.right
+        self.level_rect.top = self.score_rect.bottom + 10
+
+    def prep_ships(self,index):
+        """Show how many ships are left."""
+        self.ships = Group()
+        for ship_number in range(self.stats.ships_left):
+            ship = Ship(self.ai_game,index)
+            ship.rect.x = 10 + ship_number * ship.rect.width
+            ship.rect.y = 10
+            self.ships.add(ship)
+
+    def check_high_score(self):
+        """Check to see if there's a new high score."""
+        if self.stats.score > self.stats.high_score:
+            self.stats.high_score = self.stats.score
+            self.prep_high_score()
+
+    def show_score(self):
+        """Draw scores, level, and ships to the screen."""
+        self.screen.blit(self.score_image, self.score_rect)
+        self.screen.blit(self.high_score_image, self.high_score_rect)
+        self.screen.blit(self.level_image, self.level_rect)
+        self.ships.draw(self.screen)
diff --git a/settings.py b/settings.py
new file mode 100644
index 0000000..b926d04
--- /dev/null
+++ b/settings.py
@@ -0,0 +1,50 @@
+import pygame
+class Settings:
+    """A class to store all settings for Alien Invasion."""
+
+    def __init__(self):
+        """Initialize the game's static settings."""
+        # Screen settings
+        self.screen_width = 1200
+        self.screen_height = 650
+        self.bg_color = (255, 255, 255) 
+        # background = pygame.image.load('scoring\\images\\background.jpg')  
+        # alien_invasion.screen.blit(background,(0,0))
+        # Ship settings
+        self.ship_limit = 3
+
+        # Bullet settings
+        self.bullet_width = 3
+        self.bullet_height = 15
+        self.bullet_color = (60, 60, 60)
+        self.bullets_allowed = 5
+
+        # Alien settings
+        self.fleet_drop_speed = 10
+
+        # How quickly the game speeds up
+        self.speedup_scale = 1.1
+        # How quickly the alien point values increase
+        self.score_scale = 1.5
+
+        self.initialize_dynamic_settings()
+
+    def initialize_dynamic_settings(self):
+        """Initialize settings that change throughout the game."""
+        self.ship_speed = 1.5
+        self.bullet_speed = 2.5
+        self.alien_speed = 1.0
+
+        # fleet_direction of 1 represents right; -1 represents left.
+        self.fleet_direction = 1
+
+        # Scoring settings
+        self.alien_points = 50
+
+    def increase_speed(self):
+        """Increase speed settings and alien point values."""
+        self.ship_speed *= self.speedup_scale
+        self.bullet_speed *= self.speedup_scale
+        self.alien_speed *= self.speedup_scale
+
+        self.alien_points = int(self.alien_points * self.score_scale)
\ No newline at end of file
diff --git a/ship.py b/ship.py
new file mode 100644
index 0000000..2cba01b
--- /dev/null
+++ b/ship.py
@@ -0,0 +1,54 @@
+import pygame
+from pygame.sprite import Sprite
+
+
+class Ship(Sprite):
+    """A class to manage the ship."""
+
+    def __init__(self, ai_game,index):
+        """Initialize the ship and set its starting position."""
+        super().__init__()
+        self.screen = ai_game.screen
+        self.settings = ai_game.settings
+        self.screen_rect = ai_game.screen.get_rect()
+        # 现在你可以通过实例访问image_path
+        # images = ImageSwitcher.j
+        print(index)
+        # Load the ship image and get its rect.
+        self.original_image = pygame.image.load(index) 
+        alien_width = 90
+        alien_height = 90 
+  
+        # 调整图片大小  
+        self.image = pygame.transform.scale(self.original_image, (alien_width, alien_height))
+        self.rect = self.image.get_rect()
+
+        # Start each new ship at the bottom center of the screen.
+        self.rect.midbottom = self.screen_rect.midbottom
+
+        # Store a float for the ship's exact horizontal position.
+        self.x = float(self.rect.x)
+
+        # Movement flags; start with a ship that's not moving.
+        self.moving_right = False
+        self.moving_left = False
+
+    def center_ship(self):
+        """Center the ship on the screen."""
+        self.rect.midbottom = self.screen_rect.midbottom
+        self.x = float(self.rect.x)
+
+    def update(self):
+        """Update the ship's position based on movement flags."""
+        # Update the ship's x value, not the rect.
+        if self.moving_right and self.rect.right < self.screen_rect.right:
+            self.x += self.settings.ship_speed
+        if self.moving_left and self.rect.left > 0:
+            self.x -= self.settings.ship_speed
+            
+        # Update rect object from self.x.
+        self.rect.x = self.x
+
+    def blitme(self):
+        """Draw the ship at its current location."""
+        self.screen.blit(self.image, self.rect)
\ No newline at end of file
diff --git a/welcome.py b/welcome.py
new file mode 100644
index 0000000..057b357
--- /dev/null
+++ b/welcome.py
@@ -0,0 +1,59 @@
+import tkinter as tk 
+# 这个就属于第三方库 tkinter，还有pygame，像这样的import引入时报错的，一般就是你的第三方库没有引入
+from tkinter import messagebox  
+# 然后你输入命令下载第三方库,我这里已经下载了，所以它会提示已存在gaiku
+# 像这样下载完之后，就可以找到代码中对应的主函数运行了，记得每个python文件都要引入(如果有的话就要引入)，
+# 不然代码会报错，我这里的主程序设置成welcome.py了,我直接运行该文件就可以，内如比较简陋，但是基本
+# 的功能都有，这个都可以自己改的
+import category
+def welcome_screen():  
+    # 创建主窗口  
+    root = tk.Tk()  
+    root.title("欢迎界面")  
+    root.geometry("1200x700")  
+    root.configure(bg='lightblue')  
+    
+    # 创建欢迎标签  
+    welcome_label = tk.Label(root, text="欢迎使用外星人大战！", font=("Arial", 50, "bold"))  
+    welcome_label.pack(pady=50)  
+    
+    # 倒计时变量  
+    countdown = 7  
+    
+    # 更新倒计时标签的函数  
+    def update_countdown_label():  
+        nonlocal countdown  
+        countdown -= 1  
+        if countdown >= 0:  
+            # 更新标签文本并再次调用自己（使用root.after实现递归）  
+            message_label.config(text=f"{countdown}秒后自动进入游戏")  
+            root.after(1000, update_countdown_label)  # 每隔1秒调用一次  
+        else:  
+            # 倒计时结束，弹出消息框并关闭窗口   
+            root.destroy()
+            category.category()
+                
+    
+    # 创建倒计时标签  
+    message_label = tk.Label(root, text="7秒后自动进入游戏", font=("Arial", 10, "bold"))  
+    message_label.pack(pady=10)  
+    
+    # 创建开始游戏按钮（可选，用于手动开始游戏）  
+    def simulate_page_jump():  
+        root.destroy()  
+        category.category()
+    
+    jump_button = tk.Button(root, text="开始游戏", font=("Arial", 24, "bold"), command=simulate_page_jump)  
+    jump_button.pack(pady=20)  
+    
+    # 开始倒计时  
+    update_countdown_label()  
+    
+    # 进入Tkinter事件循环  
+    root.mainloop()  
+if __name__ == '__main__':
+    welcome_screen()
+
+        # ai = AlienInvasion()
+        # ai.run_game()
+    
\ No newline at end of file