Python 错误地从 txt 文件中读取-解网

问：

我正在制作一个脚本来使用 caeser 密码加密文件，使用我制作的随机其他脚本作为测试。它正确地写入 txt 文档，密码处于活动状态，但是当我尝试从文件中读取时，它会在应该有一个填充字符的地方添加 Â€（字母 x 由 8 键组成的密码，到 unicode 索引 128）。

填充字符应该在哪里的 unicode 索引是欧元符号的 3000 以上，重音 A 首先不应该出现，这是我用来运行密码的代码：

def encrypt(file = str, key = int):
    with open(file) as d:
        data = d.read()
    char = []
    for i in data:
        i = ord(i)+key
        i = chr(i)
        char.append(i)
    file = open("encryptedcode.txt","w", encoding = "utf-8")
    for x in char:
        file.write(x)
encrypt("C:/Users/chris/OneDrive/Homework Files/DT/advstrings.py",8)

这是文件 advstrings.py 中的非加密代码：

def advstrings():
    word = input("Please enter a word: ")
    print(word[-1])
    x = len(word)-2
    for i in range(0,len(word)-1):
        print(word[x])
        x = x-1

这是加密文件中显示的内容：

lmn(il\~{|zqvo{01B((((wzl(E(qvx}|0\*Xtmi{m(mv|mz(i(wzlB(\*1((((xzqv|0wzlc59e1(((((E(tmv0wzl15:((((nwz(q(qv(zivom084tmv0wzl1591B((((((((xzqv|0wzlce1(((((((((E(59

这是正确的，但是当我从这个文件中读取，然后将其写入一个新文件时，会出现以下情况：

lmn(il\~{|zqvo{01B((((wzl(E(qvx}|0\*Xtmi{m(mv|mz(i(wzlB(\*1((((xzqv|0wzlc59e1((((Â€(E(tmv0wzl15:((((nwz(q(qv(zivom084tmv0wzl1591B((((((((xzqv|0wzlcÂ€e1((((((((Â€(E(Â€59

这是我用来解密它的方法：

def decrypt():
    newchar = []
    file = open("encryptedcode2.txt","w", encoding = "utf-8")
    with open("C:/Users/chris/OneDrive/Homework Files/DT/encryptedcode.txt") as c:
        chars = c.read()
    for x in chars:
        x = ord(x)-8
        x = chr(x)
        newchar.append(x)
    print(*newchar, sep = "")
decrypt()

最后，这是它在 IDLE 中打印的内容：

def advstrings():
    word = input("Please enter a word: ")
    print(word\[-1\])
    º₤ = len(word)-2
    for i in range(0,len(word)-1):
        print(word\[º₤\])
        º₤ = º₤-1

如果这要读很多，很抱歉，但 python 似乎不喜欢我在 ASCII 的 127 上使用 unicode indeces

Python Unicode

from string import ascii_lowercase as lower, ascii_uppercase as upper

# Intended cipher method (encrypts ONLY ALPHABETICAL characters)
def encrypt(string, key=0):
    buffer = []
    lower_offset = ord('a')-key
    upper_offset = ord('A')-key
    for char in string:
        if char.isalpha():
            if char.islower():
                buffer.append(lower[(ord(char)-lower_offset)%26])
            else:
                buffer.append(upper[(ord(char)-upper_offset)%26])
        else:
            buffer.append(char)
    return ''.join(buffer)

# Extending the algorithm to work with any arbitary alphabet
def encrypt_extended(string, key=0, alphabet=[chr(i) for i in range(128)]):
    return ''.join([alphabet[(ord(char)+key)%len(alphabet)] for char in string])

def read_from(file_name):
    with open(file_name, 'r', encoding="UTF-8") as f:
        return f.read()

def write_to(file_name, content):
    with open(file_name, 'w', encoding="UTF-8") as f:
        f.write(content)

        
write_to('hello.txt', 'Hello world!')
original = read_from('hello.txt')
print("Original message is:")
print(original)
encrypted = encrypt(original, 8)
print("Encrypted message is:")
print(encrypted)
write_to('encrypted.txt', encrypted)
decrypted = encrypt(read_from('encrypted.txt'), -8)
print("Decrypted message is:")
print(decrypted)
print(f"Does the decrypted message match the original? {original==decrypted}")

上一个：SQL Server 和 UTF-8 XML [重复]

下一个：WC 克隆不支持多字节字符

Python 错误地从 txt 文件中读取

Python incorrectly reading from a txt file

评论