用原来字母的后面第四个字母,替换原来的字母
static string Transfer()
{
string A="abcde";
for(int n=0;n<A.Length;n++)
{
int tmpInt = Convert.ToInt32(A[n]);
tmpInt += 4;
System.Text.ASCIIEncoding asciiEncoding = new System.Text.ASCIIEncoding();
byte[] btNumber = new byte[] { (byte)tmpInt };
return asciiEncoding.GetString(btNumber);
}
return null;
}