c# - I want to shuffle 5 cards in an array -

i have 5 cards in gabeobject[] cards. want shuffle , save these cards gameobject[] cardshuffle. wrong code. shuffles same cards. how can make not shuffle same cards again? thank you.

using unityengine;  using system.collections;  public class main : monobehaviour {  public gameobject[] cards; public gameobject[] cardshuffle; int i=0; int j = 0; int save=0; int[] kayit = new int[10]; int kayit2; public gameobject[] player1; public gameobject[] player2; public gameobject[] player3;  // use initialization void start () {      kayit[0] = 20;     while(i<5)     {         save = random.range(0, 5);          (int = 0; < 5; a++ )         {             if(kayit[a] == save)             {                 kayit2 = save;          }         }         if (kayit2 != save)         {             cardshuffle[i] = cards[save];         }         else             i--;         kayit[i] = save;         i++;    }           while (cards[j] != null)         {              player1[j] = cards[j];             j++;              debug.log(j);         }  }  // update called once per frame void update () {  } } 

okay works plastic sturgeon.

using unityengine; using system.collections;  public class main : monobehaviour {  public gameobject[] cards; public gameobject[] tmp;  public gameobject[] player1; public gameobject[] player2; public gameobject[] player3;  // use initialization void start () {      (int t = 0; t < cards.length; t++)     {         tmp[0] = cards[t];         int r = random.range(t, cards.length);         cards[t] = cards[r];            cards[r] = tmp[0];         }         for(int i=0; i<cards.length;i++)         {         player1[i] = cards[i];          }          }   // update called once per frame void update () {  }   }