save project

snake.py

 import pygame
 from pygame import locals
-import random
 
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
+FPSCLOCK = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
 
-FPSCLOCK=pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
-right = pygame.image.load('right.png')
-food = pygame.image.load('apple.png')
-body = pygame.image.load('body.png')
-up=pygame.image.load('up.png')
-down=pygame.image.load('down.png')
-right=pygame.image.load('right.png')
-left=pygame.image.load('left.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
+
+x, y = 240, 120
+position = [(180, 90), (180, 120), (210, 120), (x, y)]
+apple_x = 360   # 苹果横坐标
+apple_y = 300   # 苹果纵坐标
+
+setheading = "right"
+snake_head = right
 
-x,y=240,120
-p=[(180,90),(180,120),(210,120),(240,120)]
-apple_x,apple_y=360,300
-setheading="right"
-snake_head=right
-# 
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
-        elif event.type==locals.KEYDOWN:
-            if event.key==locals.K_RIGHT and setheading !="left":
-                setheading='right'
-                snake_head=right
-            if event.key==locals.K_RIGHT and setheading !="right":
-                setheading='left'
-                snake_head=left
-            if event.key==locals.K_RIGHT and setheading !="down":
-                setheading='up'
-                snake_head=up
-            if event.key==locals.K_RIGHT and setheading !="up":
-                setheading='down'
-                snake_head=dwon
-    if setheading=="right":
-        x+=30
-    if setheading=="left":
-        x-=30
-    if setheading=="up":
-        y-=30
+        if event.type == locals.KEYDOWN:
+            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
+
+    # 设置贪吃蛇的头部坐标
+    if setheading == "right":
+        x += 30
+    elif setheading == "left":
+        x -= 30
+    elif setheading == "up":
+        y -= 30
     else:
-        y+=30
-    p.append((x,y))
-    p.pop(0)
+        y += 30
+    position.append((x, y))
+    # 贪吃蛇吃到了苹果
+    if x == apple_x and y == apple_y:
+        apple_x = random.randint(0, 660)
+        apple_y = random.randint(0, 480)
+        
+    position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
-    screen.blit(right,p[-1])
+    # 将贪吃蛇的头画上去
+    screen.blit(snake_head, position[-1])
     # 将贪吃蛇的身体画上去
-    for i in range(len(p)-1):
-        screen.blit(body,p[i])
-    if x==apple_x and y==apple_y:
-        apple_x=random.randint(0,600)
-        apple_y=random.randint(0,480)
-    # screen.blit(body, (210, 120))
-    # screen.blit(body, (180, 120))
-    # screen.blit(body, (180, 90))
+    for i in range(len(position)-1):
+        screen.blit(body, position[i])
+
     # 将果实画上去
-    screen.blit(food, (apple_x, apple_y))
+    screen.blit(food, (360, 300))
     # 刷新画面
-    
     pygame.display.update()
     FPSCLOCK.tick(3)
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