Python之画图 turtle 练习题
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2022-07-01 19:09:32
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有关画图的文章视频有很多,大家都可以很容易找到,我也不想再重复了,不过这里有几道很不错的题目,分享一下。
题一:彩虹糖
from turtle import *
from random import random
import contextlib
def draw_circle(r):
a, b, c = random(), random(), random()
#pencolor(a, b, c)
fillcolor(a, b, c)
begin_fill()
circle(r)
end_fill()
def pen_skip(step):
penup()
forward(step)
pendown()
speed(5)
setup(width=800,height=600)
screensize(600,400, "gray")
long = 600
high = 450
left(180)
pen_skip(250)
left(90)
pen_skip(200)
left(90)
high_start = 50
high_step = 50
long_start = 50
long_step = 50
for i in range(high_start,high,high_step):
for j in range(long_start,long,long_step):
if (i//high_step)%2 ==1:
if j == long-long_step:
draw_circle(long_step//2)
continue
draw_circle(long_step // 2)
pen_skip(long_step)
else:
if j == long-long_step:
draw_circle(-long_step // 2)
continue
draw_circle(-long_step // 2)
pen_skip(long_step)
if (i//50)%2 == 1:
left(90)
pen_skip(high_step)
left(90)
else:
right(90)
pen_skip(high_step)
right(90)
exitonclick()
效果图如下:
题二:同心圆
from turtle import *
import random
def pen_skip(step):
penup()
forward(step)
pendown()
color = ['blue','red','yellow','pink','black']
for i in range(100,10,-10):
fillcolor(random.sample(color,1)[0])
begin_fill()
circle(i)
end_fill()
left(90)
pen_skip(10)
right(90)
exitonclick()
效果图如下:
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