save project

snake.py

@@ -48,9 +48,12 @@ while True:
         head="up"
     p.append((x,y))
     if apple_x==x and apple_y==y:
-        apple_x=random.randint(0,660)
-        apple_y=random.randint(0,480)
-    p.pop(0)
+        s=random.randint(1,22)
+        b=random.randint(1,16)
+        apple_x=s*30-30
+        apple_y=b*30-30
+    else:
+        p.pop(0)
     t.tick(3)
     # 将背景图画上去