save project

snake.py

@@ -52,7 +52,12 @@ while True:
     else:
     else:
         y += 30
         y += 30
     position.append((x, y))
     position.append((x, y))
-    position.pop(0)
+
+    if x==a_x and y==a_y:
+        a_x=random.randint(0,21)*30
+        a_y=random.randint(0,15)*30
+    else:
+        position.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去