save project

snake.py

@@ -52,7 +52,15 @@ while True:
     else:
         y += 30
     position.append((x, y))
+    if x apple_x and y== apple_y:
+        num1 =random.randint(1,22)
+        num2=random.randint(1,16)
+        apple_x=30*num1-30
+        apple_y =30*num2-30
+    else:
+            positipn.pop(0)
     position.pop(0)
+    
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -65,4 +73,5 @@ while True:
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(3)
+    
\ No newline at end of file