auto save

snake.py

-import pygame
+
+        if event.type == locals.QUIT:
+            # 接收到退出事件后退出程序
+            exit()
+        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":import pygame
 from pygame import locals
 import random
 
@@ -28,25 +47,6 @@ 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()
-        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
@@ -56,9 +56,11 @@ while True:
         y += 30
     position.append((x, y))
     if x == apple_x and y == apple_y:
-        apple_x = random.randint(0,660)
-        apple_y = random.randint(0,480)
-
+        num1 = random.randint(1,22)
+        num2 = random.randint(1,12)
+        apple_x = num1* 30 - 30
+        apple_y = num2* 30 - 30
+    else:
         position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))