"""
author:魏振東
data：2019.10.25
func:繪製創意圖形
"""from turtle import
*from random import
*#畫雪花
defdrawsnow()
: hideturtle(
) pensize(2)
for i in
range(20
):pencolor(
"white"
) penup(
) setx(randint(
-640
,640))
sety(randint(
-400
,400))
pendown(
) dens=randint(8,
12)snowsize=randint(10,
14)for j in
range
(dens)
: forward(snowsize)
backward(snowsize)
right(
360/dens)
# 位移函式
defgotopos
(x, y)
: up(
) goto(x, y)
down(
) ht(
)def
(path, rules)
: l =
[_ for _ in path]
for i in
range
(len
(l))
: symbol = l[i]
if symbol ==
'f':
l[i]
= rules[symbol]
if symbol ==
'x':
l[i]
= rules[symbol]
path =
''.join(l)
return path
defdraw_path
(path)
: poslist, anglelist =
,for symbol in path:
if symbol ==
'f':
forward(length)
elif symbol ==
'+':
left(angle)
elif symbol ==
'-':
rt(angle)
elif symbol ==
'[':))
))elif symbol ==
'a':
pensize(3)
color(
"black"
)elif symbol ==
'b':
pensize(2)
color(
"black"
)elif symbol ==
'c':
pensize(2)
color(
"black"
)elif symbol ==
']':
up() home(
) goto(poslist.pop())
left(anglelist.pop())
down(
)# 寫字
defwritez
(x, y, str_, size=
56, font=
"華文行楷"):
gotopos(x, y)
write(str_, font=
(font, size)
)# 畫布
setup(
1280
,800
)speed(5)
bgcolor(
"silver"
)# 題字
color(
"black"
)writez(
-213,-
210,
"梅",
196)
writez(-50
,100
,"宋"
)writez(80,
20,"王")
writez(33,
-30,"安",62
)writez(-18
,-95,
"石",78)
# 寫詩
color(
"black"
)s =
"牆角數枝梅"
s2 =
"淩寒獨自開"
s3 =
"遙知不是雪"
s4 =
"為有暗香來"
for i in
range
(len
(s))
: writez(
560,
350- i *
50, s[i],36
)for i in
range
(len
(s2)):
writez(
510,
320- i *
50, s2[i],36
)for i in
range
(len
(s3)):
writez(
460,
290- i *
50, s3[i],36
)for i in
range
(len
(s4)):
writez(
410,
260- i *
50, s4[i],36
)# 畫雪
drawsnow(
)# 畫梅
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