function ListCommon2(first,second,third)
{
this.First=function ()
{
alert("first do"+first);
}
}
ListCommon2.do1=function(first)
{
// this.First();
alert("first do"+first);
}
ListCommon2.prototype.do2=function(first)
{
// this.First();
alert("first do"+first);
}

var t1=new ListCommon2("燒水1","泡茶1","喝1");
// t1.do1();//調用出錯
ListCommon2.do1("燒水1");
var t2=new ListCommon2("燒水2","泡茶2","喝2");
t2.do2("燒水2");//
// ListCommon2.do2("燒水1");//調用出錯