Javascript操作剪切板数据（支持IE、Chrome、360、搜狗），亲测！

clipboarddata只能在IE浏览器中使用，在chrome下会提示对象未定义！以下的方法支持IE、Chrome、360、搜狗等浏览器，其它浏览器还未验证。

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,Chrome=1">
    <title>js操作剪切板测试</title>
    <script>
        var EventUtil = {
            addHandler: function (element, type, handler) {
                if (element.addEventListener) {
                    element.addEventListener(type, handler, false);
                } else if (element.attachEvent) {
                    element.attachEvent("on" + type, handler);
                } else {
                    element["on" + type] = handler;
                }
            },
            getEvent: function (event) {
                return event ? event : window.event;
            },
            getClipboardText: function (event) {
                var clipboardData = (event.clipboardData || window.clipboardData);
                return clipboardData.getData("text");
            },
            setClipboardText: function (event, value) {
                if (event.clipboardData) {
                    return event.clipboardData.setData("text/plain", value);
                } else if (window.clipboardData) {
                    return window.clipboardData.setData("text", value);
                }
            },
            preventDefault: function (event) {
                if (event.preventDefault) {
                    event.preventDefault();
                } else {
                    event.returnValue = false;
                }
            }
        };
    </script>
</head>

<body>
<form name="f1">
    文本框：<input type="text" name="textbox1" id="textbox1" value=""/>
</form>
</body>
<script>
    var textbox = document.forms[0].elements["textbox1"]
    EventUtil.addHandler(textbox, "paste", function (event) {
        event = EventUtil.getEvent(event);
        var text = EventUtil.getClipboardText(event);
        alert(text.length);
        //if (!/^\d*$/.test(text)) {
        EventUtil.preventDefault(event);//取消粘贴
        //}
    });

</script>
</html>

参考自：http://blog.csdn.net/qwlovedzm/article/details/18412193

　　　　http://www.w3cmm.com/javascript/operation-clipboard.html