执行下面程序后,以下哪个图形是正确的?( )
import turtleturtle.shape('square')turtle.home()turtle.dot()turtle.stamp()turtle.forward(100)turtle.setheading(90)turtle.stamp()turtle.forward(100)turtle.left(90)turtle.stamp()turtle.forward(100)turtle.left(90)turtle.stamp()turtle.forward(100)
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