获取本周属于本年度第几周【搜藏】

/// <summary>
/// 获取本周属于本年度第几周方法
/// </summary>
/// <returns>返回周数</returns>
protected string getWeek()
{

      CultureInfo ci = CultureInfo.CurrentCulture;

      System.Globalization.Calendar cal = ci.Calendar;

      CalendarWeekRule cwr = ci.DateTimeFormat.CalendarWeekRule;

      DayOfWeek dow = ci.DateTimeFormat.FirstDayOfWeek;

      return cal.GetWeekOfYear(DateTime.Now, cwr, dow).ToString();

}