新手求教！

代码贴出来吧，看不清

function Person(_name,_age,_fun)
{
name=_name;
age=_age;
this.myFun=_fun;
}
var p1 = new Person("王平",20,jisuan);
document.writeln(p1.name);
document.writeln(p1.myFun(3,2,"+"));
var dog={name:'小狗',age:10,fun1:function(){document.writeln('我是小狗'+this.name);},fun2:function(){document.writeln('我的年龄是'+this.age+'岁');}};
dog.fun1();
dog.fun2();