如何对用逗号分隔的数字进行排序

def sort_comma_separated_numbers(numbers):
    # 分割并转换为数值类型
    numbers_list = [int(num) for num in numbers.split(",")]

    # 使用快速排序算法对数字列表进行排序
    quick_sort(numbers_list, 0, len(numbers_list) - 1)

    # 将排序后的数字重新以逗号分隔的形式进行拼接
    sorted_numbers = ",".join(str(num) for num in numbers_list)

    return sorted_numbers

def quick_sort(numbers, low, high):
    if low < high:
        # 选择一个基准值
        pivot_index = partition(numbers, low, high)

        # 递归地对基准值左右两侧的子数组进行排序
        quick_sort(numbers, low, pivot_index - 1)
        quick_sort(numbers, pivot_index + 1, high)

def partition(numbers, low, high):
    # 以最右边的元素作为基准值
    pivot = numbers[high]
    i = low - 1

    for j in range(low, high):
        if numbers[j] < pivot:
            i += 1
            # 交换数字的位置
            numbers[i], numbers[j] = numbers[j], numbers[i]

    # 将基准值放到正确的位置上
    numbers[i + 1], numbers[high] = numbers[high], numbers[i + 1]

    return i + 1