冒泡排序

<script>
        let arr = [1, 5, 6, 3, 2, 4, 8, 7, 9,155,165,45,25]
        for (let i = 0; i < arr.length - 1; i++) {
            for (let j = 0; j < arr.length - i - 1; j++) {
                if (arr[j] < arr[j + 1]) {
                    let lin = arr[j];
                    arr[j] = arr[j + 1];
                    arr[j + 1] = lin
                }
            }
        }
        document.write(arr)
    </script>