深入理解Javascript动态方法调用与参数修改的问题

function func1(name) {
    name = 'lily';
    alert(name);
}
func1('jack');//输出lily

function fun1(n) {
    this.name = n;
}
function fun2(name) {
    fun1.call(this,'lily');
    alert(name);
}
fun2("jack");//输出"jack"

function fun1() {
    arguments.callee.caller.arguments[0] = 'lily';
}
function fun2(name) {
    fun1.call(this,name);
    alert(name);
}
fun2("jack");//输出"lily"