javascript动态创建对象

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <script type="text/javascript">
        function btnClick() {
            var div = document.getElementById("divMian");
            var input = document.createElement("input"); //根据标签名创建DOM
            input.type = "button";
            input.value = "动态创建按钮";
            div.appendChild(input);
        }
        function btnClick1() {
            var link = document.getElementById("Link1");
            alert(link.innerHTML);
            alert(link.innerText);
        }
        function createTable() {
            //冒号的前面为Key
            var data = { "百度": "http://www.baidu.com", "新浪": "http://www.sina.com" };
            var div = document.getElementById("table");

            for (var Key in data) {
                var tr = document.createElement("tr");
                var value = data[Key];

                var td1 = document.createElement("td");
                td1.innerText = Key;
                tr.appendChild(td1);

                var td2 = document.createElement("td");
                td2.innerHTML = "<a href='" + value + "'>" + value + "</a>";
                tr.appendChild(td2);

                div.appendChild(tr);
            }

        }
        function key() {
            var data = { "百度": "http://www.baidu.com", "新浪": "http://www.sina.com" };
            for (var va in data) {
                alert(va);
            }
        }
    </script>
</head>
<body>
    <div id="divMian">
    </div>
    <input type="button" onclick="btnClick()" value="创建按钮" />
    <a href="http://baidu.com" id="Link1">传<font color="red">智</font>播客</a>
    <input type="button" onclick="btnClick1()" value="innerText与innerHTML" />
    <br />
    <table id="table">
    </table>
    <input type="button" value="创建" onclick="createTable()" /><br />
    <input type="button" value="输出key" onclick="key()" />
</body>
</html>
原文地址:https://www.cnblogs.com/sumg/p/3742763.html