使用turtle库绘制一个红色五角星图形
import math
import turtle
RADIUS = 100
angleSin18 = math.sin(math.pi * 0.1) * RADIUS
angleCos18 = math.cos(math.pi * 0.1) * RADIUS
angleSin54 = math.sin(math.pi * 0.3) * RADIUS
angleCos54 = math.cos(math.pi * 0.3) * RADIUS
turtle.width(1)
turtle.fillcolor("red")
turtle.begin_fill()
turtle.penup()
turtle.goto(-angleCos18, angleSin18)
turtle.pendown()
turtle.goto(angleCos18, angleSin18)
turtle.goto(-angleCos54, -angleSin54)
turtle.goto(0, RADIUS)
turtle.goto(angleCos54, -angleSin54)
turtle.goto(-angleCos18, angleSin18)
turtle.end_fill()