〈! --Used to store the function you want to call--〉

public Page_OnLoad()
{
if (!Page.IsPost())
{
string strFunName=Request.Form["FunName"]!=null?Request.Form["FunName"]:"";
//Determine which function to call based on the value passed back
switch(strFunName)
{
case "enter()":
enter() ; //Call this function
break;
case "other":
//Call other functions
break ;
default:
//Call the default function
break;
}
}
}
public void enter()
{
//… For example, calculate a certain value
}