C#输出日历

        用C#输出日历，此功能可用于Ajax方式列出计划日程相关的内容，由于是C#控制输出，可以方便加上自己需要的业务处理逻辑。

1.控制台输出：

using System;

namespace 控制台日历
{
	class Program
	{
		public static void Main(string[] args)
		{
			
			string s = "    ";
			Console.WriteLine("输入年份：");
			int nYear = int.Parse(Console.ReadLine());
			Console.WriteLine("输入月份：");
			int nMonth = int.Parse(Console.ReadLine());
			DateTime day1 = new DateTime(nYear,nMonth,1);
			Console.WriteLine("{0}/{1}",day1.Year,day1.Month);
			Console.WriteLine("日  一  二  三  四  五  六");
			
			int week1 =(int )day1.DayOfWeek;//获取当年当月1号的星期
			//Console.WriteLine("当月一号的星期{0}",week1);
			int lastday = day1.AddMonths(1).AddDays(-1).Day; //获取当月的最后一天
			for (int i = 0; i < week1; i++)
				Console.Write(s);//不能换行输出
			for (int i = 1; i <= lastday; i++)
			{
				Console.Write("{0:00}  ", i);//按01 02   输出
				if ((i + week1) % 7 == 0)
					Console.WriteLine();
			} 
			Console.WriteLine();
			Console.Write("Press any key to continue . . . ");
			Console.ReadKey(true);
		}
	}
}

2.Html表格输出：

  #region 生成表格日历
        /// <summary>
        /// 生成表格日历 index：月份偏量，用来查看上一月下一月
        /// </summary>
        /// <param name="index"></param>
        /// <returns></returns>
        public static string GetCalendarHtml(int index = 0)
        {
            DateTime day1 = new DateTime(DateTime.Now.AddMonths(index).Year, DateTime.Now.AddMonths(index).Month, 1);
            int week1 = (int)day1.DayOfWeek;//获取当年当月1号的星期 
            int lastday = day1.AddMonths(1).AddDays(-1).Day; //获取当月的最后一天

            System.Text.StringBuilder builder = new System.Text.StringBuilder();
            builder.Append(string.Format("<table class='calendar_table'><caption><span  style='cursor:pointer' class='prevMonth' onclick='javascript:changeMonth(-1)'>上一月</span><span class='currMonth'> {0}年{1}月</span><span style='cursor:pointer' class='nextMonth' onclick='javascript:changeMonth(1)'>下一月</span></caption>", DateTime.Now.AddMonths(index).Year, DateTime.Now.AddMonths(index).Month));
            builder.Append("<tr class='calendar_head'>");
            builder.Append("<td class='calendar_cell'>日</td>");
            builder.Append("<td class='calendar_cell'>一</td>");
            builder.Append("<td class='calendar_cell'>二</td>");
            builder.Append("<td class='calendar_cell'>三</td>");
            builder.Append("<td class='calendar_cell'>四</td>");
            builder.Append("<td class='calendar_cell'>五</td>");
            builder.Append("<td class='calendar_cell'>六</td>");
            builder.Append("</tr>");
            string emptyString = "<td class='calendar_cell'> </td>";
            if (week1 > 0)
            {
                builder.Append("<tr class='calendar_body'>");
                for (int i = 0; i < week1; i++)
                {
                    builder.Append(emptyString);
                }
            }
            for (int i = 1; i <= lastday; i++)
            {
                string day = string.Format("{0:00}  ", i);//按01 02   输出
                builder.Append(string.Format("<td class='calendar_cell'>{0}</td>", day));
                if ((i + week1) % 7 == 0)
                {
                    builder.Append("</tr><tr class='calendar_body'>");
                }
            }
            builder.Append("</tr>");
            builder.Append("</table>");
            return builder.ToString();
        }

        #endregion