auto save

snake.py

 import pygame
+import time
 from random import randint
 from pygame import locals
 
@@ -19,6 +20,7 @@ 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
 txt=pygame.font.Font("neuropol.ttf",20)
+over=pygame.font.Font("neuropol.ttf",75)
 
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
@@ -47,20 +49,12 @@ while True:
                 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
+    
     position.append((x, y))
     if position[-1] == (fx,fy):
         fx=randint(0,20)*30
         fy=randint(0,15)*30
         score+=1
-
     else:
         position.pop(0)
     # 将背景图画上去
@@ -69,9 +63,21 @@ while True:
     screen.blit(background, (0, 0))
     # 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(position)-1):
-        screen.blit(body, position[i])
+    if 0>x or 630<x or 0>y or y>450:
+        a=over.render("GAME OVER",True,(0,0,0))
+        screen.blit(a, (0, 75))
+        
+    else:
+        if setheading == "right":
+            x += 30
+        elif setheading == "left":
+            x -= 30
+        elif setheading == "up":
+            y -= 30
+        else:
+            y += 30
+
+    
     # 将果实画上去1
     screen.blit(food, (fx, fy))
     screen.blit(text,(10,10))