import turtle turtle.bgpic("window.gif") pen = turtle.Pen() pen.pensize(5) pen.pencolor("red") #定義畫三角形函數(shù) def triangle(side,color): ??for i in range(3): ????pen.color(color) ????pen.forward(side) ????pen.left(120) ???? #定義畫正方形函數(shù) def square(side,color): ??for i in range(4): ????pen.color(color) ????pen.forward(side) ????pen.left(90) def S(r,color): ??pen.color(color) ??pen.circle(r,360) ??? for i in range(4): ??S(50,"red")?? ??S(60,"red") ??square(50,"black") ??square(120,"black") ??pen.left(90) #調(diào)用函數(shù)