我有一些字符:
chars = "$%#@!*abcdefghijklmnopqrstuvwxyz1234567890?;:ABCDEFGHIJKLMnopQRSTUVWXYZ^&".tochararray();
static Random random = new Random(); public static char GetLetter() { // This method returns a random lowercase letter // ... Between 'a' and 'z' inclusize. int num = random.Next(0,26); // Zero to 25 char let = (char)('a' + num); return let; }