文件操作，列表实例NiceHexSpiral

fr = open('1.txt', mode='r', encoding='utf-8')
plauncode=fr.read()
fr.read()
fw = open('1-1.txt', mode='a', encoding='utf-8')
for c in plauncode:
    fw.write(chr(ord(c)+1))
fw.close()

fr = open('1-1.txt', mode='r', encoding='utf-8')
plauncode=fr.read()
fr.read()
fw = open('1-2.txt', mode='a', encoding='utf-8')
for c in plauncode:
    fw.write(chr(ord(c)-1))
fw.close()

import turtle
colors=['#FFD700','#FF83FA','#FF0000','#EEAEEE','#CAFF70','#5CACEE']
turtle.speed(10)
for i in range(100):
    turtle.pencolor(colors[i%6])
    turtle.forward(i)
    turtle.left(59)
turtle.done()