1 #include <stdio.h>
  2 #include <Windows.h>
  3 #include<time.h>
  4 #define row 3
  5 #define list 3
  6 
  7 void init_Board(char board[row][list])    //對二維數組元素全部賦值為   “ ” 
  8 {
  9     memset(board,‘ ‘,row*list*sizeof(char));
 10 }
 11 
 12 void display_Board(char board[row][list])//
 
畫出棋譜 
 13 {
 14     system("cls");
 15     int i = 0;
 16     for (i = 0; i < row; i++)
 17     {   
 18         printf("     %c |%c | %c\n", board[i][0], board[i][1], board[i][2]);
 19         if (i != 2){
 20             printf("     --|--|--\n");
 21         }        
 22     }
 23     printf("(Ｘ代表玩家，0代表電腦)\n
 
") ;
 24 }
 25 
 26 void man_Play(char board[row][list]) //玩家下“子” 
 27 {
 28     int i = 0;
 29     int j = 0;
 30     flag:
 31        printf("選擇一個坐標：\n");
 32     scanf("%d", &i);
 33     if (i > 3 || i <1)
 34     {
 35         printf("橫坐標越界，重輸：\n");
 36         goto flag;
 37     }
 38     scanf("
 
%d", &j);
 39     if (j > 3 || j <1)
 40     {
 41         printf("縱坐標越界，重輸：\n");
 42         goto flag;
 43     }
 44     if (board[i-1][j-1] == ‘ ‘)
 45     board[i-1][j-1]=‘X‘;
 46     else
 47     {
 48         printf("所選位置已被下過，請重新輸入\n");
 49         goto flag;
 50     }
 51 }
 52 
 53 char is_Win(char board[row][list])
 54 {
 55     int i = 0;
 56     int j = 0;
 57     for (i = 0; i < row; i++)
 58     {
 59         if ((board[i][0] == board[i][1]) && (board[i][0] == board[i][2]))
 60             return board[i][0];
 61     }
 62     for (j = 0; j < row; j++)
 63     {
 64         if ((board[0][j] == board[1][j]) &&( board[0][j] == board[2][j]))
 65             return board[0][j];
 66     }
 67     if ((board[0][0] == board[1][1]) && (board[1][1] == board[2][2]))
 68         return board[1][1];
 69     if ((board[0][2] == board[1][1]) && (board[1][1] == board[2][0]))
 70         return board[1][1];
 71     return ‘ ‘;
 72 }
 73 void computer_Play(char board[row][list])  //電腦下“子” 
 74 {
 75     int i = 0;
 76     int j = 0;
 77     while (1)
 78     {
 79         srand((int)time(0));//設置隨機種子 
 80         i = rand() % 3;       //產生隨機數 
 81         j = rand() % 3;
 82         if (board[i][j] == ‘ ‘)
 83         {
 84             board[i][j] = ‘0‘;
 85             break;
 86         }
 87     }
 88 }
 89 
 90 int is_Full(char board[row][list]) 
 91 {
 92     int i = 0;
 93     int j = 0;
 94     int count = 0;
 95     for (i = 0; i < row;i++)
 96     for (j = 0; j < list; j++)
 97     {
 98         if (board[i][j] == ‘ ‘)
 99             count++;
100     }
101     return count;
102 }
103 
104 int main()
105 {
106     char board[row][list];
107     init_Board(board);
108     display_Board(board);
109     while (1)
110     {
111         if ((is_Full(board) > 0))
112         {
113             man_Play(board);
114             display_Board(board);
115             printf("\n");
116             if (is_Win(board) == ‘X‘)
117             {
118                 printf("玩家勝\n");
119                 break;
120             }
121         }
122         else
123         {
124             printf("平局！"); 
125             break;
126         }
127         if ((is_Full(board) >0))
128         {
129             computer_Play(board);
130             display_Board(board);
131             printf("\n");
132             if (is_Win(board) == 48)
133             {
134                 printf("電腦勝\n");
135                 break;
136             }
137         }
138         else
139         {
140             printf("平局！");
141             break;
142         }
143     }
144     printf("遊戲結束!\n");
145     system("pause");
146     return 0;
147 }

C語 三子棋小遊戲