扩展：现在按照你的想法自定义程序！
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stage.set_background("footballfield2")
sprite = codesters.Sprite("cheerleader1")
sprite.set_speed(2)
sprite.move_down(150)
sprite.flip_up_down()
sprite.move_right(200)
sprite.move_left(200)
sprite.flip_up_down()
stage.wait(2)
sprite.move_up(50)
sprite.turn_left(360)
sprite.move_down(50)
stage.wait(2)
sprite.flip_right_left()
stage.wait(1)
sprite.flip_right_left()
stage.wait(1)
sprite.flip_right_left()
stage.wait(1)
sprite.flip_right_left()
stage.wait(1)
sprite.say("Go team!")
