编辑代码

function printNumberRecursively(n) {
    if (n === 0) {
        return;
    }

    printNumberRecursively(n - 1);

    let row = '';
    for (let i = 0; i < n; i++) {
        row += n + ' ';
    }
    console.log(row);
}

// 示例
const n = 5;
printNumberRecursively(n);