import random

with open("f:/hello.txt", encoding='utf-8') as f:
    char = f.read(1)
    newf = open('f:/hello_encoding.txt','w')
    while char:
        char = chr(ord(char)+random.randint(1, 9))
        newf.write(char)![请添加图片描述](https://img-blog.csdnimg.cn/79f0ee47c9094f14ad03f9bd05178dce.png)

        char = f.read(1)
    newf.close()