python画漂亮的玫瑰图形

[python]代码库

#!/usr/bin/env python
# encoding: utf-8

import turtle

class star:

    def __init__(self):
        self.sides = 6
        self.circle = 360
        self.colors = ['red', 'yellow', 'green', 'blue', 'orange', 'purple']

    def hello(self):
        '''
        This is a welcome speech
        :return: self
        '''
        return self

    def run(self):
        '''
        The program entry
        '''
        turtle.bgcolor('black')
        t = turtle.Pen()
        for x in range(self.circle):
            t.pencolor(self.colors[x % self.sides])
            t.forward(x * 20 / self.sides + x)
            t.left(90 / self.sides + 9)
            t.width(x * self.sides / 200)
            t.left(30)


if __name__ == '__main__':
    star().hello().run()

[代码运行效果截图]