auto save

my_game.py

 import pygame
 from pygame import locals
-
+import random
 pygame.init()  # 初始化
 # 创建一个窗口
 screen = pygame.display.set_mode((1000, 600))
 pygame.display.set_caption('我是人')
 FPS = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
 a='running'
-y=400
+t=30
+y=500
+zaw = random.choice([stone,cacti,apple])
+    rect = zaw.get_rect()
+    rect.x = 1000
+    rect.y = 500-rect.height
+     
 # 载入图片
 background = pygame.image.load('bg.png')    # 背景
 road = pygame.image.load('road.png')      # 路
@@ -30,7 +36,7 @@ while True:
             if event.key==locals.K_SPACE:
                 a='up'
     if a=='up':
-        if t>0:
+        if t>=0:
             y-=t
             t-=2
         else:
@@ -41,15 +47,14 @@ while True:
             t+=2
         else:
             a='running'
-            t = 30
-
-
-
+            t=30
+    
+    if rect.x<=0-rect.width:
+        zaw = random.choice([stone,cacti,apple])
+        rect = zaw.get_rect()
+        rect.x = 1000
+        rect.y = 500-rect.height
         
-            
-
-
-
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(road, (0, 500))