save project

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+import pygame
+from pygame import locals
+from pygame import time
+import random
+
+# 初始化pygame，为使用硬件做准备
+pygame.init()
+
+FPSCLOCK = pygame.time.Clock()
+# 创建一个窗口
+screen = pygame.display.set_mode((660, 480))
+score=0
+my_font = pygame.font.Font('neuropol.ttf',20)
+x=240
+y=120
+position = [(120,90),(180,120),(210,120),(x,y)]
+apple_x=330
+apple_y=240
+# 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')
+left = pygame.image.load('left.png')
+down = pygame.image.load('down.png')
+up = pygame.image.load('up.png')
+
+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_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
+    if setheading == 'right':
+        x += 30
+    if setheading == 'left':
+        x -= 30
+    if setheading == 'up':
+        y -= 30
+    if setheading == 'down':
+        y += 30
+    position.append((x,y))
+    if  x == apple_x and y==apple_y:
+        score +=1
+        apple = random.randint(0,21)
+        apple1 = random.randint(0,15)
+        apple_x=apple*30
+        apple_y=apple1*30
+    else:
+        position.pop(0)
+    if x < 0 or x > 630 or y < 0 or y > 450:
+        exit()
+    # 将背景图画上去
+    screen.blit(background, (0, 0))
+    # 将贪吃蛇画上去
+    screen.blit(snake_head, position[-1])
+    # 将贪吃蛇的身体画上去
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+
+
+    #screen.blit(body, (210, 120))
+ #   screen.blit(body, (180, 120))
+ #   screen.blit(body, (180, 90))
+    # 将果实画上去
+    screen.blit(food, (apple_x, apple_y))
+    info = 'Score'+str(score)
+    text=my_font.render(info,True,(20,51,81))
+    screen.blit(text,(540,10))
+    # 刷新画面
+    pygame.display.update()
+    FPSCLOCK.tick(4)
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