save project

snake.py

@@ -22,11 +22,11 @@ my_font = pygame.font.Font('neuropol.ttf',18)
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 apple_x = 360
-apple_y = 360
+apple_y = 300
 
 setheading = "right"
 snake_head = right
-screen = 0
+score = 0
 
 while True:
     for event in pygame.event.get():
@@ -63,9 +63,11 @@ while True:
         num2 = random.randint(1,16)
         apple_x = num1*30 - 30
         apple_y = num2*30 - 30
-        screen + 1
+        screen += 1
     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))
     # 将贪吃蛇的头画上去
@@ -77,10 +79,10 @@ while True:
     # 将果实画上去
 
     screen.blit(food,(apple_x,apple_y))
-
-    info = my_font.render(info,Trne,(0,0,0))
+    info = "Score"+str(score)
+    text = my_font.render(info,True,(0,0,0))
 
     screen.blit(text,(540,10))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(2)
\ No newline at end of file
+    FPSCLOCK.tick(3)
\ No newline at end of file