save project

snake.py

@@ -52,15 +52,18 @@ while True:
         
     postion.append((x,y))
     if x == apple_x and y == apple_y:
-        apple_x=random.randint(0,660)
-        apple_y=random.randint(0,480)
-    postion.pop(0)
+        num1=random.randint(1,22)
+        num2=random.randint(1,16)
+        apple_x=30*num1-30
+        apple_y=30*num2-30
+    else:
+        postion.pop(0)
     screen.blit(background,(0,0))
     screen.blit(snake_head,(postion[-1]))
     for i in range(len(postion)-1):  
         screen.blit(body,postion[i])
     # 将背景图画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
\ No newline at end of file