暴力破解凯撒密码

def solve(ciphertext):
    results = []
    for shift in range(26):
        text = []
        for c in ciphertext:
            if c.isalpha():
                base = ord('A') if c.isupper() else ord('a')
                text.append(chr((ord(c) - base - shift) % 26 + base))
            else:
                text.append(c)
        results.append(''.join(text))
    print(f"Found {len(results)} possible decryptions")