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【作品展示】

 

【作品介绍】

牛阿牛

 

【作品源代码】

from turtle import *
from random import *
t1 = Pen()
t2 = Pen()

def petal(size, start_angle, edge_color, petal_color, start_pos):
    t1.penup()
    t1.goto(start_pos)
    t1.pendown()
    t1.pencolor(edge_color)
    t2.pencolor(edge_color)
    t1.fillcolor(petal_color)
    t2.fillcolor(edge_color)
    t1.seth(start_angle)
    t1.begin_fill()
    t1.fd(size)
    t1.lt(90)
    t1.penup()
    t2.penup()
    t2.goto(t1.pos())
    t2.pendown()
    while (360+t1.heading()-90)%360 <= (start_angle + 60) % 360 \
        or (start_angle >= 300 and t1.heading() < 90):
        angle1 = randint(1,6)
        angle2 = angle1*10
        t2.seth(t1.heading()-90+angle2)
        t2.begin_fill()
        while  abs(t2.heading()-(t2.towards(start_pos)-180))%90 >= angle2 -angle1/2:
            t2.fd(1)
        t1.circle(size,angle1)
        t2.goto(t1.pos())
        t2.seth(t1.heading()+90)
        t2.fd(randint(size//20,size//8))
        t2.end_fill()
        t2.goto(t1.pos())
    t1.pendown()
    t1.goto(start_pos)
    t1.end_fill()


def leaf(direct):
    start_pos = t1.pos()
    t1.pencolor('lawn green')
    t1.fillcolor('green')
    t1.begin_fill()
    t1.pensize(5)
    if direct == 'right':
        d = 1
    elif direct == 'left':
        d = -1
    t1.seth(90-d*60)
    t1.circle(-100*d,60)
    t1.circle(100*d,60)
    t1.left(15*d)
    t1.circle(-150*d,30)
    t1.circle(150*d,30)
    t1.goto(start_pos)
    t1.end_fill()
    t1.dot(30)

t1.sety(-300)
t1.pencolor("green")
t1.pensize(10)
t1.sety(-200)
leaf('left')
leaf('right')
t1.sety(-185)
t1.pencolor('green')
t1.pensize(10)
t1.sety(100)
t1.pensize(1)
t1.speed(0)
t2.speed(0)
for i in range(200,40,-50):
    for j in range(6):
        petal(i + randint(-20,20),(j*60+randint(30,60)+i*2)%360,\
            'pink1','red',(0,100))
done()

 

【提示】

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