递归创建List并填充值

List 递归

 List<string> CreateInstanVar(int time_in_level1)
{
    List<string> result = new List<string>();
    for (int i = 0; i < time_in_level1; i++)
    {
        result.Add(String.Empty);
    }

    return result;
}

List<List<string>> CreateInstanVar(int time_in_level1, int time_in_level2)
{
    List<List<string>> result = new List<List<string>>();
    for (int i = 0; i < time_in_level2; i++)
    {
        result.Add(CreateInstanVar(time_in_level1));
    }

    return result;
}

List<List<List<string>>> CreateInstanVar(int time_in_level1, int time_in_level2, int time_in_level3)
{
    List<List<List<string>>> result = new List<List<List<string>>>();
    for (int i = 0; i < time_in_level3; i++)
    {
        result.Add(CreateInstanVar(time_in_level1, time_in_level2));
    }

    return result;
}

List<List<List<List<string>>>> CreateInstanVar(int time_in_level1, int time_in_level2, int time_in_level3, int time_in_level4)
{
    List<List<List<List<string>>>> result = new List<List<List<List<string>>>>();
    for (int i = 0; i < time_in_level4; i++)
    {
        result.Add(CreateInstanVar(time_in_level1, time_in_level2, time_in_level3));
    }

    return result;
}

//替代方案，用重载代替传入参数
//更多的以此类推