新手求教this的问题 - 编程论坛

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.
<html xmlns="http://www.
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<script>
var s = Array();;
function items(){
    var z = new Array(); // z添加了2个变量后再添加到数组S里
    var e= "";

    this.a = document.getElementById("text").value;
    this.b = document.getElementById("text1").value;


    var c = document.getElementById("ul");
    z.push(a);
    z.push(b);
    s.push(z);

    this.getNumber = function(n){
        this.a = n;
    }


        for(var i = 0;i < s.length;i++){
            e += "<li>"+s[i]+"<a href=\"#\" onclick = change('"+i+"')>change</a></li>";
        }

    c.innerHTML = e;
}

function change(n){
    var y = prompt("hello");
    s[n][1].getNumber(y);  // 引用function getNumber来改变

}

</script>
<body>
<input type="text"  id="text"/>
<input type="text"  id="text1"/>
<input type="button"value="onclick" id="button1" onclick="items()" />
<ul id = "ul">
</ul>

</body>
</html>

这是我做的一个小练习  但是function change(n)里的传送数据无法运行求高手解答