LETTER

Posted 2020-11-09 梁伟进

fr = open(\'letter.txt\',mode=\'r\',encoding=\'utf-8\')
plaincode = fr.read()
print(\'明文:\' + plaincode)


print(\'密文:\',end=\'\')
for c in plaincode:
    print(chr(ord(c)+3),end=\'\')

　　

fr = open(\'88.txt\',mode=\'r\',encoding=\'utf-8\')
plaincode = fr.read()
fr.close()

fw = open(\'c_88.txt\',mode=\'a\', encoding=\'utf-8\')
for c  in  plaincode:
    fw.write(chr(ord(c)-3))
fw.close(

　　

import turtle
colors=[\'yellow\',\'red\',\'black\',\'blue\',\'purple\',\'orange\']
turtle.speed(10)
for i in range(100):
    turtle.pencolor(colors[i%6])
    turtle.forward(i)
    turtle.left(59)

turtle.done()