请高人改错

[jhdxhj]

public partial class Bottom_Menu_index : System.Web.UI.Page
{
public DateTime dt1=new DateTime (1970,1,1,08,00,00);
public DateTime dt2 = DateTime.Now;
TimeSpan ts1=dt2-dt1;
public string strSecend = ts1.TotalSeconds;
}
报告的错误：编译错误
说明: 在编译向该请求提供服务所需资源的过程中出现错误。请检查下列特定错误详细信息并适当地修改源代码。

编译器错误信息: CS0236: 字段初始值设定项无法引用非静态字段、方法或属性“Bottom_Menu_index.dt2”

源错误:



行 15: public DateTime dt1=new DateTime (1970,1,1,08,00,00);
行 16: public DateTime dt2 = DateTime.Now;
行 17: TimeSpan ts1=dt2-dt1;
行 18: public string strSecend = ts1.TotalSeconds;
行 19: protected void Page_Load(object sender, EventArgs e)

请问高人这个错错在哪里？应该如何改进啊

[lizhengnan]

TimeSpan ts1=dt2-dt1;
这个应该写在一个函数里吧

[lizhengnan]

public partial class Bottom_Menu_index : System.Web.UI.Page 
{  
  public  DateTime dt1=new DateTime (1970,1,1,08,00,00); 
    public DateTime dt2 = DateTime.Now;  
    public string  strSecend = 0; 

protected void Page_Load(object sender, EventArgs e)
{
  TimeSpan ts1=dt2-dt1;
  strSecend = ts1.TotalSeconds;
} 
} 

[jiang_jiajia10]

[Quote=引用 2 楼 lizhengnan 的回复:]
C# code
public partial class Bottom_Menu_index : System.Web.UI.Page
{
public DateTime dt1=new DateTime (1970,1,1,08,00,00);
public DateTime dt2 = DateTime.Now;
public string strSecend = 0;

protected void Page_Load(object sender, EventArgs e)
{
TimeSpan ts1=dt2-dt1;
strSecend = ts1.TotalSeconds;
}
}
[/Quote]
可以

[jiangzhe556]

[Quote=引用 2 楼 lizhengnan 的回复:]
C# code
public partial class Bottom_Menu_index : System.Web.UI.Page
{
public DateTime dt1=new DateTime (1970,1,1,08,00,00);
public DateTime dt2 = DateTime.Now;
public string strSecend = 0;

protected void Page_Load(object sender, EventArgs e)
{
TimeSpan ts1=dt2-dt1;
strSecend = ts1.TotalSeconds;
}
}
[/Quote]

DDD

[满衣兄]

		public  DateTime dt1=new DateTime (1970,1,1,08,00,00);
		public DateTime dt2 = DateTime.Now;
		private void Page_Load(object sender, System.EventArgs e)
		{
			
			TimeSpan ts1=dt2-dt1;
			string  strSecend = ts1.TotalSeconds.ToString();
			
		}

不能在类中直接进行计算，要在方法中计算就可以。
另外，在你调用这个类的时候错了，这个是非static的变量，不能直接用类名调用，这样修改：

		public static DateTime dt1=new DateTime (1970,1,1,08,00,00);
		public static DateTime dt2 = DateTime.Now;
		private void Page_Load(object sender, System.EventArgs e)
		{
			
			TimeSpan ts1=dt2-dt1;
			string  strSecend = ts1.TotalSeconds.ToString();
			
		}