如何在纵横填字游戏中选择和取消选择

// 假设有一个二维数组grid表示游戏网格
const grid = [
  ['A', 'B', 'C'],
  ['D', 'E', 'F'],
  ['G', 'H', 'I']
];

let selectedWord = null;

// 选择单词的函数
function selectWord(x, y, direction) {
  if (direction === 'horizontal') {
    selectedWord = grid[x].slice(y, y + 3).join('');
  } else if (direction === 'vertical') {
    selectedWord = [grid[x][y], grid[x + 1][y], grid[x + 2][y]].join('');
  }
  console.log('Selected word:', selectedWord);
}

// 取消选择的函数
function deselectWord() {
  selectedWord = null;
  console.log('Deselected word');
}

// 示例调用
selectWord(0, 0, 'horizontal'); // 选择单词 "ABC"
deselectWord(); // 取消选择