如何在矩阵中找到行的最大值和总和

function findMaxAndSum(matrix) {
  let max = matrix[0][0];
  let sum = 0;

  for (let i = 0; i < matrix.length; i++) {
    let row = matrix[i];
    let rowSum = 0;

    for (let j = 0; j < row.length; j++) {
      let element = row[j];

      if (element > max) {
        max = element;
      }

      rowSum += element;
    }

    sum += rowSum;
  }

  return {
    max: max,
    sum: sum
  };
}

// 示例矩阵
const matrix = [
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9]
];

const result = findMaxAndSum(matrix);
console.log("最大值:", result.max);
console.log("总和:", result.sum);