第1个回答 2012-05-29
static void Main(string[] args)
{
string N= Console.ReadLine();
char[] strarr = N.ToString().ToCharArray();
StringBuilder sb = new StringBuilder();
for (int i = strarr.Length-1; i >=0; i--)
{
sb.Append(strarr[i]);
}
Console.WriteLine(sb.ToString());
Console.ReadKey();
}