预览：在我们开始制作我们的第一个程序之前，让我们看一个例子。
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stage.set_background("winter")
sprite = codesters.Sprite("fox")
sprite.set_speed(2)
sprite.move_down(4)
stage.wait(1)
sprite.move_right(2)
sprite.say("Click on me!")
def click():
sprite.say("Hey there Codester!")
sprite.move_up(3)
sprite.turn_right(360)
sprite.move_down(3)
sprite.say("Great job.")
stage.wait(1)
sprite.say("Click submit and next to continue!")
sprite.event_click(click)
