<script src="zeroclipboard.135.js"></script>
<script src="jquery.zclip1x.js"></script>

$copy = $('#copy-btn').zclip({
    beforeCopy: function () {
        // beforeCopy
    },
    copy: function () {
        console.log(this); // #copy-btn
        return '要复制的内容';
    },
    afterCopy: function () {

        console.log('after Copy');
    }
});