python 用turtle库以及random库辅助的画 海龟画实例

这下边都是我无聊画的，感兴趣可以拿去看看，研究研究琢磨琢磨，练习练习。
实例一

import turtle as t
import random as r
t.setup(500,500)
t.bgcolor("brown")
t.hideturtle()

t.speed(0)
for i in range(50):
    t.speed(0)
    t.pensize(5)
    q = r.randrange(-250,250,18)
    w = r.randrange(-250,250,18)
    t.penup()
    t.goto(q,w)
    t.pendown()
    colors = ['white','ivory','wheat','seashell']
    t.color(colors[i%4])
    t.begin_fill()
    t.pencolor(colors[i%4])
    for z in range(2):
        for x in range(1):
            for y in range(90):
                t.forward(1)
                t.right(1)
            t.right(90)
    t.end_fill()
    
t.penup()
t.goto(0,-50)
t.pendown()
t.pensize(1)
a = 1
c = 0
while c!=250:
    t.color('seagreen')
    t.speed(0)
    t.forward(a)
    t.left(a)
    c = c + 1
    a = a +0.7

实例二

import random
import turtle as t
t.speed(10)
t.bgcolor('black')
t.hideturtle()

t.pensize(5)
def draw(x,y):
    colors=['cyan']
    t.pencolor(random.choice(colors))
    size=random.randint(10,50)
    t.penup()
    t.goto(x,y)
    t.pendown()
    for i in range(1):
        t.forward(i)
        t.circle(50,steps=3)
        for i in range(1):
            t.forward(i)
            t.circle(50,steps=4)
            for i in range(1):
                t.forward(i)
                t.circle(50,steps=5)
                


for n in range(50):
    x = random.randrange(-380,380,50)
    y = random.randrange(-380,380,50)
    draw(x,y)

实例三

import turtle as t
t.speed(0)
t.setup(800,800)
t.penup()
t.goto(-400,400)
t.pendown()
t.colormode(255)
t.color((71,60,139))
t.begin_fill()
for i in range(4):
   t.forward(800)
   t.right(90)
t.end_fill()

#花瓣
t.penup()
t.goto(0,0)
t.pendown()
t.pensize(10)
colors=['seashell','magenta','pink','purple','cyan','tomato']

for i in range(6):
   for x in range(2):
      for y in range(90):
         t.pencolor(colors[x%6])
         t.forward(3)
         t.right(1)
      t.right(90)
   t.right(60)


t.speed(0)
#花心
for i in range(6):
   for x in range(2):
      for y in range(90):
         t.pencolor("yellow")
         t.forward(1)
         t.right(1)
      t.right(90)
   t.right(60)

t.penup()
t.goto(0,-30)
t.pendown()

t.color('yellow')
t.begin_fill()
t.circle(25)
t.end_fill()

t.pencolor('cyan')
t.penup()
t.goto(-350,350)
t.pendown()
t.write('May the Christmas candle \
bring you peace and \
happiness.',  font = ('SimHei', 15, 'bold'))