从二维数组中创建另一个二维数组，该数组由从原始数组中随机选择的值(行之间不共享的值)组成，而不使用循环

function createRandomArray(originalArray) {
  var newArray = [];
  var rows = originalArray.length;
  var cols = originalArray[0].length;

  while (newArray.length < rows) {
    var randomRow = Math.floor(Math.random() * rows);
    var randomCol = Math.floor(Math.random() * cols);

    if (!isIndexExist(newArray, randomRow, randomCol)) {
      newArray.push(originalArray[randomRow][randomCol]);
    }
  }

  return newArray;
}

function isIndexExist(array, row, col) {
  for (var i = 0; i < array.length; i++) {
    if (array[i][0] === row && array[i][1] === col) {
      return true;
    }
  }
  return false;
}

// 示例用法
var originalArray = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
var randomArray = createRandomArray(originalArray);
console.log(randomArray);