save project

snake.py

@@ -29,8 +29,14 @@ while True:
                 shi="up"
             if event.key==locals.K_DOWN and shi != "up":
                 shi="down"
-        
-    x+=30
+    if shi=="right":
+        x+=30
+    elif shi=="left":
+        x-=30
+    elif shi=="up":
+        y-=30
+    else:
+        y+=30    
     pst.append((x,y))
     pst.pop(0)
     # 将背景图画上去
@@ -45,4 +51,4 @@ while True:
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
-    FPS.tick(3)
\ No newline at end of file
+    FPS.tick(6)
\ No newline at end of file