private void CaesarDecryptBtn_Click(object sender, RoutedEventArgs e)//凯撒解密
{
if (Regex.IsMatch(CaesarKey.Text, AllowedKeys) && Regex.IsMatch(CaesarEncrypted.Text, AllowedTexts))
{
CaesarPlain.Text = Caesar.Decrypt(CaesarEncrypted.Text, Convert.ToInt32(CaesarKey.Text));
}
else
{
MessageBox.Show("偏移量必须是正整数、原文或密文必须由字母和空格组成", "输入的数值有误");
}
}
private void ForceDecryptBtn_Click(object sender, RoutedEventArgs e)
{
string str = "";
if (Regex.IsMatch(CaesarEncrypted.Text, AllowedTexts))
{
for (int i = 1; i < 27; i++)
{
str = str + i + " --> " + Caesar.Decrypt(CaesarEncrypted.Text, i) + Environment.NewLine;//重复执行解密26次，每次偏移量加1，将结果依次输出到原文框
}
CaesarPlain.Text = str;
}
else
{
MessageBox.Show("密文必须由字母和空格组成", "输入的数值有误");
}
}//凯撒穷举
