<p>我希望这是非常简单的修复。我在使用Python的Windows Powershell中遇到的错误如下：</p>
<p><strong>回溯（最近调用最后一次）：文件“[文件名.py]“，第66行，英寸
主（密文）名称错误：未定义名称“密文”</strong></p>
<p>我的代码：</p>
<pre><code>def main():
# cipherOne contains encrypted Cesear cipher
myMessage = cipherOne
ciphertext = encryptMessage(key, myMessage)
# Print the encrypted string in ciphertext to the screen, with
# a | (called "pipe" character) after it in case there are spaces at
# the end of the encrypted message.
print(ciphertext)
def encryptMessage(key, message):
# Each string in ciphertext represents a column in the grid.
ciphertext = [''] * key
# Loop through each column in ciphertext.
for col in range(key):
pointer = col
# Keep looping until pointer goes past the length of the message.
while pointer < len(message):
# Place the character at pointer in message at the end of the
# current column in the ciphertext list.
ciphertext[col] += message[pointer]
# move pointer over
pointer += key
# Convert the ciphertext list into a single string value and return it.
return ''.join(ciphertext)
# call main() function.
if __name__ == '__main__':
main()
target = open (filenamenew, 'a')
target.write(ciphertext) #the error
target.close()
</code></pre>
<p>我可以用密文将加密字符串打印到屏幕上，但无法解决如何克服这个错误，在这个错误中，我可以将密文附加到.txt文件中。在</p>
