left(ANGLE_BETWEEN_BRANCHES / 2) turtle.backward(length) # returns back to draw next浏览完整代码 来源:y_tree.py 项目:Metushelah/Python_Intro2cs_exercises示例15def draw_triangle(l): i=0 while(i<3): turtle.forward(l) turtle.left(120) i=i+1 turtle.done()...
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