save project

snake.py

@@ -49,11 +49,14 @@ while True:
     else:
         y-=30
         snake_hard = up
-    if x == apple_x and y == apple_y:
-        apple_x = random.randint(30,630)
-        apple_y = random.randint(30,450)
     positine.append((x,y))
-    positine.pop(0)
+    if x == apple_x and y == apple_y:
+        a = random.randint(1,22)
+        b = random.randint(1,16)
+        apple_x = a*30-30
+        apple_y = b*30-30
+    else:
+        positine.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
@@ -66,4 +69,4 @@ while True:
     # 刷新画面
     pygame.display.update()
     # 设置帧数
-    FPSCLOCK = pygame.time.Clock();FPSCLOCK.tick(4)
\ No newline at end of file
+    FPSCLOCK = pygame.time.Clock();FPSCLOCK.tick(6)
\ No newline at end of file