绘制彩图--矩形

import turtle

turtle.bgcolor('black')

turtle.title('Welcom star')

turtle.setup(800,600)

colors=['green','red','cyan','pink','purple','blue','yellow','orange']

tpen=turtle.Pen()

y=len(colors)

for x in range (1,101):

tpen.color(colors[x%y])

tpen.fd(x*10)

tpen.left(90)

turtle.mainloop()

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