如何在File.WriteAllLines文件名中设置变量？

Question

所以File.WriteAllLines有这个问题。我想知道是否可以设置一个字符串变量来自动填充城市名称吗？如果是的话，我该怎么做？这是我的代码。

void GiveALLFreeMuseumsToFileTest(MuseumsContainer museums)
{
    string[] lines = new string[museums.Count];
    for (int i = 0; i < museums.Count; i++)
    {
        lines[i] = lines[i] + "Museum Name: " + museums.GetMuseum(i).Name;
        lines[i] = lines[i] + "; Museum Type: " + museums.GetMuseum(i).Type;
        if (museums.GetMuseum(i).Days.Count() <= 2 && (museums.GetMuseum(i).Days.Contains("VI") || museums.GetMuseum(i).Days.Contains("VII")))
        {
            lines[i] = lines[i] + "; Open only at WEEKENDS";
        }
        if (museums.GetMuseum(i).City == "NewYork")
        {
            File.WriteAllLines("Nemokami_NewYork.csv", lines);
        }
        if (museums.GetMuseum(i).City == "Washington")
        {
            File.WriteAllLines("Nemokami_Washington.csv", lines);
        }
        if (museums.GetMuseum(i).City == "Chicago")
        {
            File.WriteAllLines("Nemokami_Chicago.csv", lines);
        }
        if (museums.GetMuseum(i).City == "Charlotte")
        {
            File.WriteAllLines("Nemokami_Charlotte.csv", lines);
        }
        if (museums.GetMuseum(i).City == "Miami")
        {
            File.WriteAllLines("Nemokami_Miami.csv", lines);
        }
    }
}

Answer 1

File.WriteAllLines($"Nemokami_{museums.GetMuseum(i).City}.csv", lines);

或旧式：

File.WriteAllLines("Nemokami_" + museums.GetMuseum(i).City + ".csv", lines);