c# 获取年,月,日,时,分,秒,星期几

this.nian.Text = DateTime.Now.Year.ToString(); //获取年
this.yue.Text = DateTime.Now.Month.ToString(); //获取月
this.ri.Text = DateTime.Now.Day.ToString(); //获取日
this.xingqi.Text = DateTime.Now.ToString("dddd"); //获取周几
this.shijian.Text = DateTime.Now.ToString("T"); //获取时分秒(24小时至) 18:08:59