字段必须声明公共从ASPX标记正确的知名度。在任何情况下，你可以声明一个属性：

The field must be declared public for proper visibility from the ASPX markup. In any case, you could declare a property:

private string clients;
public string Clients { get { return clients; } }

更新：它也可以被声明为保护，如下面的注释中规定

UPDATE: It can also be declared as protected, as stated in the comments below.

然后，把它在ASPX端：

Then, to call it on the ASPX side:

＆LT;％=客户端％>

<%=Clients%>

请注意，如果你把它放在一台服务器标记属性这是不行的。例如：

Note that this won't work if you place it on a server tag attribute. For example:

＆LT; ASP：标签=服务器文本=＆LT;％=客户端％>/>

<asp:Label runat="server" Text="<%=Clients%>" />

这是无效的。这是：

＆LT; D​​IV>＆LT;％=客户端％>＆LT; / DIV>

<div><%=Clients%></div>