save project

snake.py

@@ -16,7 +16,7 @@ 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
-my_font = pygame.font.Font('neuropol.ttf,'18)
+my_font = pygame.font.Font('neuropol.ttf',18)
 
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
@@ -64,6 +64,8 @@ while True:
         apple_y = 30 * num2-30
     else:        
         position.pop(0)
+    if x < 0 or x >630 or y < 0 or y > 450:
+        exif()
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -76,7 +78,7 @@ while True:
     screen.blit(food, (apple_x, apple_y))
     info = "Score:"+ str(score)
     text = my_font.render(info,True,(0,0,0))
-    screen.blit(txt,(540,10))
+    screen.blit(text,(540,10))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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