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青森＆舞长空

// program 5.8 tic-tac-toe
#include <stdio.h>

int main(void)
{
  int player = 0;     //current player number - 1 or 2
  int winner = 0;     //the winning player number
  int choice = 0;     //chosen square
  unsigned int row = 0;     //row index for a square
  unsigned int column = 0;     //column index for a square
  char board[3][3] = {     //the board
  {'1','2','3'},     //initial values are characters '1' to'9'
  {'4','5','6'},     //used to select a vacant square
  {'7','8','9'}     //for a player's turn  
  };

//the main game loop.the game continues for up to 9 turns
//as long as there is no winner
for(unsigned int i = 0; i < 9 && winner == 0; ++i)
{
  //display the board
  printf("\n");
  printf(" %c | %c| %c\n", board[0][0], board[0][1],board[0][2]);
  printf("---+---+---\n");
  printf(" %c | %c | %c\n",board[1][0],board[1][1],board[1][2]);
  printf("---+---+---\n");
  printf(" %c | %c | %c\n",board[2][0],board[2][1],board[2][2]);
  player = i%2 + 1; // select selection
  do
  {
    printf("player %d, please enter a valid square number "
           "for where you want to place your %c: ",
            player,(player == 1) ? 'x' : 'o');
    scanf("%d, &choice);

    row = --choice/3;     //get row index of square
    column = choice % 3;     //get column index of square
}while(choice < 0 ||choice > 8 || board[row][column] > '9');

// insert player symbol
board[row][column] = (player == 1) ? 'x' : 'o';

//check for a winning line - diagonals first
if((board[0][0]==board[1][1] && board[0][0]==board[2][2]||
   (board[0][2]==board[1][1] && board[0][2]==board[2][0]))
winner = player
elsa
{
  //check rows and columns for a winning line
  for(unsigned int line = 0; line<=2;++line)
{
  if((board[line][0] ==board[line][1] && board[line][0] ==board[line][2] ||
     (board[0][line]==board[1][line] &&board[0][line] ==board[2][line]))
winner = player
}
}
}
// game is over so display the final board
printf("\n");
  printf(" %c | %c| %c\n", board[0][0], board[0][1],board[0][2]);
  printf("---+---+---\n");
  printf(" %c | %c | %c\n",board[1][0],board[1][1],board[1][2]);
  printf("---+---+---\n");
  printf(" %c | %c | %c\n",board[2][0],board[2][1],board[2][2]);

  //display result message
  if(winner)
    printf("\ncongratulations, player %d, you are the winner!|n", winner);
    else
      printf("\nhow boring, it is a draw\n");
  return 0;
}

蓝天之子

1. 
   
2. // program 5.8 tic-tac-toe
   
3. #include <stdio.h>
   
4. 
   
5. int main(void)
   
6. {
   
7.   int player = 0;     //current player number - 1 or 2
   
8.   int winner = 0;     //the winning player number
   
9.   int choice = 0;     //chosen square
   
10.   unsigned int row = 0;     //row index for a square
    
11.   unsigned int column = 0;     //column index for a square
    
12.   char board[3][3] = {     //the board
    
13.   {'1','2','3'},     //initial values are characters '1' to'9'
    
14.   {'4','5','6'},     //used to select a vacant square
    
15.   {'7','8','9'}     //for a player's turn  
    
16.   };
    
17. unsigned int i,line;
    
18. //the main game loop.the game continues for up to 9 turns
    
19. //as long as there is no winner
    
20. for(i = 0; i < 9 && winner == 0; ++i)
    
21. {
    
22.   //display the board
    
23.   printf("\n");
    
24.   printf(" %c | %c| %c\n", board[0][0], board[0][1],board[0][2]);
    
25.   printf("---+---+---\n");
    
26.   printf(" %c | %c | %c\n",board[1][0],board[1][1],board[1][2]);
    
27.   printf("---+---+---\n");
    
28.   printf(" %c | %c | %c\n",board[2][0],board[2][1],board[2][2]);
    
29.   player = i%2 + 1; // select selection
    
30.   do
    
31.   {
    
32.     printf("player %d, please enter a valid square number "
    
33.            "for where you want to place your %c: ",
    
34.             player,(player == 1) ? 'x' : 'o');
    
35.     scanf("%d", &choice);
    
36. 
    
37.     row = --choice/3;     //get row index of square
    
38.     column = choice % 3;     //get column index of square
    
39. }while(choice < 0 ||choice > 8 || board[row][column] > '9');
    
40. 
    
41. // insert player symbol
    
42. board[row][column] = (player == 1) ? 'x' : 'o';
    
43. 
    
44. //check for a winning line - diagonals first
    
45. if((board[0][0]==board[1][1] && board[0][0]==board[2][2]||
    
46.    board[0][2]==board[1][1] && board[0][2]==board[2][0]))
    
47. winner = player;
    
48. else
    
49. {
    
50.   //check rows and columns for a winning line
    
51.   for( line = 0; line<=2;++line)
    
52. {
    
53.   if((board[line][0] ==board[line][1] && board[line][0] ==board[line][2] ||
    
54.      board[0][line]==board[1][line] &&board[0][line] ==board[2][line]))
    
55. winner = player;
    
56. }
    
57. }
    
58. }
    
59. // game is over so display the final board
    
60. printf("\n");
    
61.   printf(" %c | %c| %c\n", board[0][0], board[0][1],board[0][2]);
    
62.   printf("---+---+---\n");
    
63.   printf(" %c | %c | %c\n",board[1][0],board[1][1],board[1][2]);
    
64.   printf("---+---+---\n");
    
65.   printf(" %c | %c | %c\n",board[2][0],board[2][1],board[2][2]);
    
66. 
    
67.   //display result message
    
68.   if(winner)
    
69.     printf("\ncongratulations, player %d, you are the winner!|n", winner);
    
70.     else
    
71.       printf("\nhow boring, it is a draw\n");
    
72.   return 0;
    
73. }
    
74. 
    

复制代码

蓝天之子

编译运行代码呀，然后看出错提示，一行一行地来修改。比如第20行的:
for(unsigned int i = 0; i < 9 && winner == 0; ++i)
不能在循环里定义变量，为了不改变你原代码的行号，把 unsigned int i； 移到第17行，然后第20行改成：
for(i = 0; i < 9 && winner == 0; ++i)

继续编译运行提示第35行有错，scanf("%d, &choice); 应改为 scanf("%d", &choice);       漏了一个双引号

蓝天之子

继续，第47、55行的 winner = player 漏了分号，应写成   winner = player ;

蓝天之子

第46行，多了最前的括号，把 ( 去掉。
第48行的 else 错写成 elsa 了，更正回来。
第51行，把 unsigned int line 的定义放在循环之外。
第54行，把最前面的括号 ( 去掉。

OK，这回可以编译通过并运行了，敲代码能错这么多，也真是服了。

青森＆舞长空

没事 66666666666666666666666666666666666666666666666666666

青森＆舞长空

能把我的代码再改一下发回来吗？？？？？？？？？？？？？？？？？？？？？？？？？？？？？？？？？？