（求助）三子棋

#define row  3
#define col  3
#include<stdio.h>
#include<stdlib.h>
#include<time.h>

//目录
void menu() {
  printf("###############################\n");
  printf("########1.play   0.end#########\n");
  printf("###############################\n");
}
//初始化数组
void Init_arr(char arr[row][col], int x, int y) {
  int i = 0;
  int j = 0;
  for (i = 0; i < x; i++) {
    for (j = 0; j < y; j++) {
      arr[i][j] = ' ';
    }
  }
}
//打印数组
void print(char arr[row][col],int x,int y) {
  int i = 0;
  int j = 0;
  int m = 0;
  for (i = 0; i < row; i++) {
    for (j = 0; j < col; j++) {
      if (j == col - 1) {
        printf(" %c ", arr[i][j]);
      }
      else {
        printf(" %c |", arr[i][j]);
      }
    }
    printf("\n");
    if (i != row - 1) {
      for (m = 0; m < col; m++) {
        if (m == col - 1) {
          printf("---");
        }
        else {
          printf("---|");
        }
      }
    }
    printf("\n");
  }
}
//判断是否棋盘已满
int Is_full(char arr[row][col]) {
  for (int i = 0; i < row; i++) {
    for (int j = 0; j < col; j++) {
      if (arr[i][j] == ' ') {
        return 0;
      }
    }
  }
  return 1;
}
//玩家下棋
void Playermove(char arr[row][col], int x, int y) {
  printf("请输入想要下棋的坐标：");
  int i = 0;
  int j = 0;
  while (1) {
    scanf_s("%d %d", &i, &j);
    if (i >= 1 && i <= row && j >= 1 && j <= col) {
      if (arr[i-1][j-1] == ' ') {
        arr[i-1][j-1] = '*';
        print(arr, row, col);
        break;
      }
      else {
        printf("此处已经下子，不可再下棋，请重新下\n");
      }
    }
    else {
      printf("您输入的不符合棋盘规格，请重新输入下棋坐标\n");
    }
  }
}
//电脑下棋
void Computermove(char arr[row][col], int x, int y) {
  while (1) {
    int a = rand() % x;
    int b = rand() % y;
    if (arr[a][b] == ' ') {
      arr[a][b] = '#';
      print(arr, row, col);
      break;
    }
    if (Is_full(arr) == 1) {
      break;
    }
  }
}
//判断输赢
char Is_win(char arr[row][col]) {
  for (int i = 0; i < row; i++) {
    if (arr[i][0] == arr[i][1] && arr[i][0] == arr[i][2] && arr[i][0] != ' ') {
      return arr[i][0];
    }
  }
  for (int i = 0; i < col; i++) {
    if (arr[0][i] == arr[1][i] && arr[1][i] == arr[2][i] && arr[0][i] != ' ') {
      return arr[0][i];
    }
  }
  if (arr[0][0] == arr[1][1] && arr[0][0] == arr[2][2]) {
    return arr[0][0];
  }
  if (arr[2][0] == arr[1][1] && arr[0][0] == arr[0][2]) {
    return arr[2][0];
  }
  if (Is_full(arr) == 1) {
    return 'P';
  }
  return 'C';
}
//游戏本身
void fly() {
  char rea = 'C';
  //创建数组
  char arr[row][col] = { 0 };
  //初始化数组
  Init_arr(arr, row, col);
  //打印
  print(arr,row,col);
  //下棋步骤
  while (rea=='C') {
    //玩家下棋
    Playermove(arr, row, col);
    rea=Is_win(arr);
    //电脑下棋
    Computermove(arr, row, col);
    rea=Is_win(arr);
  }
  //判断结果
  if (rea == '*') {
    printf("玩家获胜\n");
  }
  else if(rea=='#') {
    printf("电脑获胜\n");
  }
  else {
    printf("平局\n");
  }

}
int main() {
  int input = 0;
  srand((unsigned int)time(NULL));
  do {
    menu();//目录
    printf("请输入是否开始游戏：");
    scanf_s("%d", &input);
    switch (input) {
    case 1:
      fly();
      break;
    case 0:
      printf("游戏终止");
      break;
    default:
      printf("您的输入有误，请在1/0中重新输入\n");
      break;
    }
  } while (input);
  return 0;
}

不能在原有棋盘上来玩，每次电脑或者玩家走完棋子，必须重新打印棋盘，有能帮助解决的吗，谢谢