Python turtle

Question

使用Python turtle库画一个五角星，要求（1）在坐标（50，200）位置开始处绘画（2）画布颜色设置为red，画笔和填充颜色为yellow。注：五角星转角角度为144

Answer 1

参考一下

import turtle
import math


def edge(x, y):
    turtle.penup()
    turtle.goto(x - 144, y + 96)  # 起始位置
    turtle.pendown()
    turtle.begin_fill()
    turtle.fillcolor('#F40002')
    turtle.pen(pencolor='#F40002')
    for i in range(2):
        turtle.fd(288)
        turtle.right(90)
        turtle.fd(192)
        turtle.right(90)
    turtle.end_fill()


def big_star(x, y, len):  # x,y为起始坐标，len为五角星边长
    turtle.goto(x, y)  # 起始位置
    turtle.setheading(0)  # 倾斜起始角度
    turtle.begin_fill()
    turtle.fillcolor('#FAF408')
    turtle.penup()
    turtle.left(18)
    turtle.fd(len / 2 / math.cos(18 * math.pi / 180))
    turtle.left(162)
    turtle.pendown()
    turtle.pen(pencolor='#FAF408')
    for i in range(5):
        turtle.fd(len)
        turtle.left(144)

    turtle.end_fill()
    turtle.penup()


def small_star(x, y, len):  # x,y为起始坐标，len为五角星边长
    turtle.goto(x, y)  # 起始位置
    angle = turtle.towards(-10 * 9.8, 5 * 9.8)
    turtle.setheading(angle)  # 倾斜起始角度 此时小五角星头部对准大五角星中心
    turtle.fd(len / 2 / math.cos(18 * math.pi / 180))
    turtle.right(162)
    turtle.pendown()
    turtle.begin_fill()
    turtle.fillcolor('#FAF408')
    for i in range(5):
        turtle.fd(len)
        turtle.right(144)
    turtle.end_fill()
    turtle.penup()


if __name__ == '__main__':
    turtle.setup(width=468, height=312)  # 左右两侧留出90像素距离 上下两侧留出60像素距离
    turtle.hideturtle()
    edge(0, 0)
    big_star(-10 * 9.8, 5 * 9.8, 6 * 9.8 * math.cos(18 * math.pi / 180))
    small_star(-5 * 9.8, 8 * 9.8, 2 * 9.8 * math.cos(18 * math.pi / 180))
    small_star(-3 * 9.8, 6 * 9.8, 2 * 9.8 * math.cos(18 * math.pi / 180))
    small_star(-3 * 9.8, 3 * 9.8, 2 * 9.8 * math.cos(18 * math.pi / 180))
    small_star(-5 * 9.8, 1 * 9.8, 2 * 9.8 * math.cos(18 * math.pi / 180))

turtle.done()