双11来了，突然想搞个一键复制淘口令或京口令的代码，比较好用的，当然还是用js实现，下面代码可用。

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document.writeln("<div class=\'text-center\'><button class=\'btn btn-primary\' data-clipboard-text=\'￥LNDncRfNdcL$\'>双️11超级现金大红包,每天3次，最高1111元,点我领取</button></div>");
var clipboard = new ClipboardJS('.btn');
clipboard.on('success', function(e) {
    alert('复制成功，请打开淘宝抢大额红包')
    e.clearSelection();
});
clipboard.on('error', function(e) {
    console.error('Action:', e.action);
    console.error('Trigger:', e.trigger);
    alert('复制失败')
});