System.DateTime.Now.ToString()的一些用法
C#中的日期处理函数 //2007年4月24日 this.TextBox6.Text = System.DateTime.Now.ToString("D"); //2007-4-24 this.TextBox7.Text = System.DateTime.Now.ToString("d"); //2007年4月24日 16:30:15 this.TextBox8.Text = System.DateTime.Now.ToString("F"); //2007年4月24日 16:30 this.TextBox9.Text = System.DateTime.Now.ToString("f"); //2007-4-24 16:30:15 this.TextBox10.Text = System.DateTime.Now.ToString("G"); //2007-4-24 16:30 this.TextBox11.Text = System.DateTime.Now.ToString("g"); //16:30:15 this.TextBox12.Text = System.DateTime.Now.ToString("T"); //16:30 this.TextBox13.Text = System.DateTime.Now.ToString("t"); //2007年4月24日 8:30:15 this.TextBox14.Text = System.DateTime.Now.ToString("U"); //2007-04-24 16:30:15Z this.TextBox15.Text = System.DateTime.Now.ToString("u"); //4月24日 this.TextBox16.Text = System.DateTime.Now.ToString("m"); this.TextBox16.Text = System.DateTime.Now.ToString("M"); //Tue, 24 Apr 2007 16:30:15 GMT this.TextBox17.Text = System.DateTime.Now.ToString("r"); this.TextBox17.Text = System.DateTime.Now.ToString("R"); //2007年4月 this.TextBox19.Text = System.DateTime.Now.ToString("y"); this.TextBox19.Text = System.DateTime.Now.ToString("Y"); //2007-04-24T15:52:19.1562500+08:00 this.TextBox20.Text = System.DateTime.Now.ToString("o"); this.TextBox20.Text = System.DateTime.Now.ToString("O"); //2007-04-24T16:30:15 this.TextBox18.Text = System.DateTime.Now.ToString("s"); //2007-04-24 15:52:19 this.TextBox21.Text = System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:ffff"); //2007年04月24 15时56分48秒 this.TextBox22.Text = System.DateTime.Now.ToString("yyyy年MM月dd HH时mm分ss秒"); //星期二, 四月 24 2007 this.TextBox1.Text = System.DateTime.Now.ToString("dddd, MMMM dd yyyy"); //二, 四月 24 '07 this.TextBox2.Text = System.DateTime.Now.ToString("ddd, MMM d \"'\"yy"); //星期二, 四月 24 this.TextBox3.Text = System.DateTime.Now.ToString("dddd, MMMM dd"); //4-07 this.TextBox4.Text = System.DateTime.Now.ToString("M/yy"); //24-04-07 this.TextBox5.Text = System.DateTime.Now.ToString("dd-MM-yy"); DateTime.Now的后面有若干个ToString(),ToShortTimeString()之类的东东,到底都是干啥用的,还是做个程序测试一下吧 string str = ""; str += "ToShortDateString:" + DateTime.Now.ToShortDateString() + "<br>"; str += "ToShortTimeString:" + DateTime.Now.ToShortTimeString() + "<br>"; str += "ToLongDateString" + DateTime.Now.ToLongDateString() + "<br>"; str += "ToLongTimeString" + DateTime.Now.ToLongTimeString() + "<br>"; str += "ToString:" + DateTime.Now.ToString() + "<br>"; Response.Write( str ); 运行结果是: ToShortDateString:2006-2-13 ToShortTimeString:12:51 ToLongDateString:2006年2月13日 ToLongTimeString:12:51:17 ToString:2006-2-13 12:51:17 可以看出,要获得包含年月日时分秒的字符串,只要ToString()就可以 字符型转换转为字符串 12345.ToString("n"); //生成 12,345.00 12345.ToString("C"); //生成 ¥12,345.00 12345.ToString("e"); //生成 1.234500e+004 12345.ToString("f4"); //生成 12345.0000 12345.ToString("x"); //生成 3039 (16进制) 12345.ToString("p"); //生成 1,234,500