C # Generate random numbers to customize letters and numbers

C # randomly generated random numbers, you can customize the number of randomly generated letters and numbers

The above is an example of generating 8-bit random numbers, 4 digits, and 4-bit letters,

The code is as follows:

classProgram {Static voidMain (string[] args) {             for(inti =0; I <Ten; i++)            {                stringresult = Createrandom (4,4);            Console.WriteLine (result); }        }        /// <summary>        ///Create a random number/// </summary>        /// <param name= "letter" >Number of letters</param>        /// <param name= "num" >Number of digits</param>        /// <returns></returns>         Public Static stringCreaterandom (intLetter,intnum) {            stringresult = Createrandomletter (letter) +createrandomnum (num); varTemp = result. (x = Guid.NewGuid ()). ToArray ();//Sort by a random value after grouping            return New string(temp); }        /// <summary>        ///Create a random number of letters/// </summary>        /// <param name= "letter" ></param>        /// <returns></returns>        Private Static stringCreaterandomletter (intLetter ) {            stringstr ="abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"; StringBuilder SB=NewStringBuilder ();  for(inti =0; i < letter; i++) {sb. Append (str[NewRandom (Guid.NewGuid (). GetHashCode ()). Next (0Str. Length-1)]); }            returnsb.        ToString (); }        /// <summary>        ///Create a number random number/// </summary>        /// <param name= "num" ></param>        /// <returns></returns>        Private Static stringCreaterandomnum (intnum) {            stringstr ="0123456789"; StringBuilder SB=NewStringBuilder ();  for(inti =0; i < num; i++) {sb. Append (str[NewRandom (Guid.NewGuid (). GetHashCode ()). Next (0Str. Length-1)]); }            returnsb.        ToString (); }    }

C # Generate random numbers to customize letters and numbers