save project

my_game.py

 import pygame
 from pygame import locals
-
+import random
 pygame.init()  # 初始化
 screen = pygame.display.set_mode((1000, 600))
 FPS = pygame.time.Clock()
@@ -20,15 +20,18 @@ a = 0
 y=400
 c="runing"
 t=30
+d=random.choice([stone,apple,cacti])
+rect=d.get_rect()
+rect.x=1000
+rect.y=500-rect.height
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
         if event.type == locals.KEYDOWN:
-            if c=="runing":
-                if event.key == locals.K_SPACE:
-                    c="up"
+            if event.key == locals.K_SPACE:
+                c="up"
     if c=="up":
         if t > 0:
             y-=t
@@ -44,15 +47,21 @@ while True:
             t=30    
                 
     b=hero[a]
-    if c=="runing":
-        a+=1
-        if a==5:
-            a=0        
+    a+=1
+    if a==5:
+        a=0        
 
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(road, (0, 500))
     screen.blit(b, (150, y))
-    # 刷新画面
+    if rect.x <0-rect.width:
+        d=random.choice([stone,apple,cacti])
+        rest=d.get_rect()
+        rect.x=1000
+        rect.y=500-rect.height
+    rect.x-=8
+    screen.blit(d,(rect.x,rect.y))    
+            # 刷新画面
     pygame.display.update()
     FPS.tick(60)
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