save project

snake.py

 import pygame
 import pygame
 from pygame import locals
 from pygame import locals
+import random
 
 
 # 初始化pygame，为使用硬件做准备
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 pygame.init()
 
 
 # 创建一个窗口
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 screen = pygame.display.set_mode((660, 480))
-FPSCLOCK = pygame.time.Clock()#pygame,时钟，控制游戏速度
+FPSCLOCK = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
 
 
 # 背景
 # 背景
 background = pygame.image.load('bg.png')
 background = pygame.image.load('bg.png')
+right = pygame.image.load('right.png')      # 头 朝右
+food = pygame.image.load('apple.png')       # 食物 苹果
+body = pygame.image.load('body.png')        # 身体
+left = pygame.image.load('left.png')        # 头 朝左
+up = pygame.image.load('up.png')            # 头 朝上
+down = pygame.image.load('down.png')        # 头 朝下
 
 
-right = pygame.image.load('right.png')
-left = pygame.image.load('left.png')
-up = pygame.image.load('up.png')
-down = pygame.image.load('down.png')
+x, y = 240, 120
+position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 
-food = pygame.image.load('apple.png')
-body = pygame.image.load('body.png')
-
-snake_head = right
 setheading = "right"
 setheading = "right"
-x,y=240,120
-position = [(180,90),(180,120),(210,120),(x, y)]
+snake_head = right
+
+apple_x = 360
+apple_y = 300
 
 
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
@@ -30,38 +33,44 @@ while True:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
         if event.type == locals.KEYDOWN:
         if event.type == locals.KEYDOWN:
-            if event.key == locals.K_RIGHT and setheading !="left":
-                snake_head = right     
-                setheading = "right"       
-            if event.key == locals.K_LEFT and setheading !="right":
-                snake_head = left    
-                setheading = "left"  
-            if event.key == locals.K_UP and setheading !="down":
-                snake_head = up      
-                setheading = "up"  
-            if event.key == locals.K_DOWN and setheading !="up":
+            if event.key == locals.K_RIGHT and setheading != "left":
+                setheading = 'right'
+                snake_head = right
+            if event.key == locals.K_LEFT and setheading != "right":
+                setheading = 'left'
+                snake_head = left
+            if event.key == locals.K_UP and setheading != "down":
+                setheading = 'up'
+                snake_head = up
+            if event.key == locals.K_DOWN and setheading != "up":
+                setheading = 'down'
                 snake_head = down
                 snake_head = down
-                setheading = "down"
-             
+
+    # 设置贪吃蛇的头部坐标
     if setheading == "right":
     if setheading == "right":
-        x+=30
+        x += 30
     elif setheading == "left":
     elif setheading == "left":
-        x-=30
+        x -= 30
     elif setheading == "up":
     elif setheading == "up":
-        y-=30
-    elif setheading == "down":
-        y+=30
-    position.append((x,y))
+        y -= 30
+    else:
+        y += 30
+    position.append((x, y))
+    if x == apple_y and y == apple_y:
+        apple_x = random.randint(0,660)
+        apple_y = random.randint(0,480)
+
     position.pop(0)
     position.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
+    # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
     screen.blit(snake_head, position[-1])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
     for i in range(len(position)-1):
-        screen.blit(body,position[i])
+        screen.blit(body, position[i])
+
     # 将果实画上去
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
-    FPSCLOCK.tick(3) 
+    FPSCLOCK.tick(3) 
\ No newline at end of file