save project

snake.py

@@ -56,9 +56,11 @@ while True:
     position.append((x, y))
     position.pop(0)
     if apple_x == x and apple_y == y:
-        apple_x = random.randint(0,660)
-        apple_y = random.randint(0,480)
-    # 将背景图画上去
+        num1 = random.randint(1,22)
+        apple_x = num1 * 30
+        num2 = random.randint(0,16)
+        apple_y = num2 * 30
+    #把背景画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])