画饼图 import turtle t = turtle.Pen() for i in range(5): t.penup() t.goto(0, -i*30) t.pendown() t.circle(i*30+30) turtle.done() 画棋盘 import turtle t = turtle.Pen() widthall = 200 width = 20 num = widthall // 20 * 2 + 1 t.speed(10) for r in range(num): t.…