namespace _047_循环练习和字符串处理 {
class Program {
static void Main(string[] args)
{
//string str = Console.ReadLine();
//bool isHui = true;
//for (int i = 0; i < str.Length/2; i++)
//{
// //i str.length-1-i;
// if (str[i] != str[str.Length - 1 - i])
// {
// isHui = false; break;
// }
//}
//if (isHui)
//{
// Console.WriteLine("是回文串");
//}
//else
//{
// Console.WriteLine("不是回文串");
//}
string str = Console.ReadLine();
if (str.Length >= 8 && str.Length <= 16)
{
bool isHaveUpper = false;
bool isHaveLower = false;
bool isHaveNumber = false;
bool isHaveSpecial = false;
for (int i = 0; i < str.Length; i++)
{
if (str[i] >= 'A' && str[i] <= 'Z')
{
isHaveUpper = true;
}
if (str[i] >= 'a' && str[i] <= 'z')
{
isHaveLower = true;
}
if (str[i] >= '0' && str[i] <= '9')
{
isHaveNumber = true;
}
//~,!,@,#,$,%,^;
if (str[i] == '~' || str[i] == '!' || str[i] == '@' || str[i] == '#' || str[i] == '$' ||
str[i] == '%' || str[i] == '^')
{
isHaveSpecial = true;
}
}
int count = 0;
if (isHaveUpper) count++;
if (isHaveLower) count++;
if (isHaveSpecial) count++;
if (isHaveNumber) count++;
if (count >= 3)
{
Console.WriteLine("这个是安全密码");
}
else {
Console.WriteLine("这个密码不安全");
}
}
else
{
Console.WriteLine("这个密码不安全 长度不符合规则");
}
Console.ReadKey();
}
}
}
