auto save

snake.py

@@ -55,11 +55,13 @@ while True:
         y += 30
     position.append((x, y))
     # 贪吃蛇吃到了苹果
-    if x == apple_x and y == apple_y:                  ##########
-        apple_x = random.randint(0, 660)            ##########
-        apple_y = random.randint(0, 480)              ##########
-        
-    position.pop(0)
+    if x == apple_x and y == apple_y:
+        num1= random.randint(1, 22)   # 横排第几个格子
+        num2 = random.randint(1, 16)   # 竖排第几个格子
+        apple_x = 30*num1-30   # 苹果的x坐标
+        apple_y = 30*num2-30   # 苹果的y坐标
+    else:
+        position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去