auto save

snake.py

@@ -59,8 +59,11 @@ while True:
     # 贪吃蛇吃到苹果
     # if判断蛇x坐标相等于苹果x坐标和蛇y坐标相等于苹果y坐标
     if x == apple_x and y == apple_y:
-        apple_x = random.randint(0, 660)# 苹果x坐标出现在随机坐标0到660
-        apple_y = random.randint(0, 480)# 苹果y坐标出现在随机坐标0到480
+        num1 = random.randint(1, 22) # 横排的第几个格子
+        num2 = random.randint(1, 16) # 竖排的第几个格子
+        apple_x = num1 * 30 - 30     # 苹果的x坐标
+        apple_y = num2 * 30 - 30     # 苹果的y坐标
+    else:  # 否则
         position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))