Question

吨。学生和我有这个挑战来创建一个程序（在C＃中）来计算一年中过去的天数，而不使用DayOfYear属性，我正在使用带有日期时间选择器的Windows窗体应用程序来选择日期计算，这是我到目前为止，它不起作用，任何建议？

    private void dtmSelectedDate_ValueChanged(object sender, EventArgs e)
    {
        DaysSoFarThisYear();
    }

    private void DaysSoFarThisYear()
    {
        int daysInMonth = dtmSelectedDate.Value.Day;
        int monthInYear = dtmSelectedDate.Value.Month;
        int daysSoFar = 0;

        int[,] daysOfYear = new int[daysInMonth, monthInYear];

        for (int row = 0; row < daysOfYear.GetLength(0); row++)
        {
            for (int col = 0; col < daysOfYear.GetLength(1); col++)
            {
                daysSoFar++;
            }
        }

        txtCalculated.Text = Convert.ToString(daysSoFar);

       // DateTime dayOfYear = new DateTime(dtmSelectedDate.Value.Year, dtmSelectedDate.Value.Month, dtmSelectedDate.Value.Day);
       // txtFromNET.Text = Convert.ToString(dayOfYear.DayOfYear);
    }
}

Answer 1

你可以试试这个

TimeSpan time= DateTime.Now.Subtract(new DateTime(DateTime.Now.Year, 01, 01));
int numberOfDays = time.Days;

如何在C＃中迭代一年中的一系列天？

1 个答案: