C# 怎么显示中文格式的星期几

1.DateTime.Now.ToString("dddd",new System.Globalization.CultureInfo("zh-cn")); 

2.new string[] { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六", }[Convert.ToInt16(DateTime.Now.DayOfWeek.ToString("D"))];

3."星期"+DateTime.Now.DayOfWeek.ToString(("d"))  

4.

/// <summary>
/// 返回日期几
/// </summary>
/// <returns></returns>
public static string DayOfWeek
{
get
{
switch (DateTime.Now.DayOfWeek.ToString("D"))
{
case "0":
return "星期日 ";
case "1":
return "星期一 ";
case "2":
return "星期二 ";
case "3":
return "星期三 ";
case "4":
return "星期四 ";
case "5":
return "星期五 ";
case "6":
return "星期六 ";
}
}
}