1 #define _CRT_SECURE_NO_WARNINGS
  2 #include<stdio.h>
  3 #include<stdlib.h>
  4 #include<time.h>
  5 
  6 #define ROW 3
  7 #define COL 3
  8 
  9 char g_broad[ROW][COL];
 10 
 11 void Init(char broad[ROW][COL])
 12 {
 13     for (int row = 0;row < ROW;++row)
 14     {
 15         for
 
 (int col = 0;col < COL;++col)
 16         {
 17             broad[row][col] = ‘ ‘;
 18         }
 19     }
 20 }
 21 
 22 void Print(char broad[ROW][COL])
 23 {
 24     for(int row=0;row<ROW;++row)
 25     {
 26         printf("| %c | %c | %c |\n",broad[row][0],broad[row][1],broad[row][2]);
 27         if
 
 (row != ROW - 1)
 28         {
 29             printf(" ---|---|---\n");
 30         }
 31     }
 32 }
 33 
 34 void Playermove(char broad[ROW][COL])
 35 {
 36     printf("玩家下棋!\n");
 37     while(1)
 38     { 
 39         int row = 0;
 40         int col = 0;
 41         printf("請輸入一組坐標：\n");
 42         scanf("
 
%d %d", &row, &col);
 43         if (row < 0 || row >= ROW || col < 0 || col >= COL)
 44         {
 45             printf("您輸入的坐標非法!請重新輸入：\n");
 46             continue;
 47         }
 48         if (broad[row][col] != ‘ ‘)
 49         {
 50             printf("該位置已經有棋子，請重新輸入：\n");
 51                 continue;
 52         }
 53         broad[row][col] = ‘x‘;
 54         break;
 55     }
 56 }
 57 
 58 void Computermove(char broad[ROW][COL])
 59 {
 60     printf("電腦下棋！\n");
 61     while (1)
 62     {
 63         int row = rand() % ROW;
 64         int col = rand() % COL;
 65         if (broad[row][col] != ‘ ‘)
 66         {
 67             //位置被占用，重新生成
 68             continue;
 69         }
 70         broad[row][col] = ‘o‘;
 71         break;
 72     }
 73 
 74 }
 75 
 76 int Isfull(char broad[ROW][COL])
 77 {
 78     for (int row = 0;row < ROW;++row)
 79     {
 80         for (int col = 0;col < COL;++col)
 81         {
 82             if (broad[row][col] == ‘ ‘)
 83             {
 84                 return 0;
 85             }
 86         }
 87     }
 88     return 1;
 89 }
 90 
 91 char Checkgame(char broad[ROW][COL])
 92 {
 93     //先檢查所有的行
 94     for (int row = 0;row < ROW;++row)
 95     {
 96         if (broad[row][0] == broad[row][1]
 97             && broad[row][0] == broad[row][2]
 98             && broad[row][0] != ‘ ‘)
 99         {
100             return broad[row][0];
101         }
102     }
103     //檢查所有列
104     for (int col = 0;col < COL;++col)
105     {
106         if (broad[0][col] == broad[1][col]
107             && broad[0][col] == broad[2][col]
108             && broad != ‘ ‘)
109         {
110             return broad[0][col];
111         }
112     }
113     //檢查對角線
114     if (broad[0][0] == broad[1][1]
115         && broad[0][0] == broad[2][2]
116         && broad[0][0] != ‘ ‘)
117     {
118         return broad[0][0];
119     }
120     if (broad[2][0] == broad[1][1]
121         && broad[2][0] == broad[0][2]
122         && broad[2][0] != ‘ ‘)
123     {
124         return broad[2][0];
125     }
126     //判定是否和棋
127     if (Isfull(broad))
128     {
129         return ‘q‘;
130     }
131     return ‘ ‘;
132 }
133 
134 void Game()
135 {
136     //1.先對棋盤進行初始化
137     Init(g_broad);
138     char winner = ‘ ‘;
139     while (1)
140     {
141         //2.打印棋盤（此時是一個空的棋盤）
142         Print(g_broad);
143         //3.玩家下棋，檢查遊戲是否結束
144         Playermove(g_broad);
145         //winner==x   玩家勝利；o電腦勝利；q和棋 ；‘ ‘勝負未分
146         winner = Checkgame(g_broad);
147         if (winner != ‘ ‘)
148         {
149             break;
150         }
151         //4.電腦下棋，檢查遊戲是否結束
152         Computermove(g_broad);
153         winner = Checkgame(g_broad);
154         if (winner != ‘ ‘)
155         {
156             break;
157         }
158         //循環第2步。
159 
160     }
161     //在遊戲結束之前打印地圖
162     Print(g_broad);
163     if (winner == ‘x‘)
164     {
165         printf("玩家勝利！\n");
166     }
167     else if (winner == ‘o‘)
168     {
169         printf("電腦勝利！\n");
170     }
171     else if (winner == ‘q‘)
172     {
173         printf("和棋！\n");
174     }
175     else
176     {
177         printf("程序出錯！\n");
178     }
179 
180 }
181 
182 int Menu()
183 {
184     printf("==============\n");
185     printf("1.開始遊戲\n");
186     printf("0.結束遊戲\n");
187     printf("==============\n");
188     printf("請輸入您的選擇：\n");
189     int choice = 0;
190     scanf("%d",&choice);
191     return choice;
192 }
193 
194 int main()
195 {
196     //這裏設置隨機種子
197     srand((unsigned int)time(0));
198     while (1)
199     {
200         int choice = Menu();
201         if (choice == 1)
202         {
203             Game();
204         }
205         else
206         {
207             printf("Goodbye！\n");
208             break;
209         }
210     }
211     return 0;
212 }

三子棋小遊戲