<div id="needCopyText">待复制的内容</div>
<span class="copyContent" data-clipboard-target="#needCopyText">复制</span>

//引入实例化clipboard.js, 注意这里不要用Clipboard而是ClipboardJS
var clipboard = new ClipboardJS('.copyContent');
clipboard.on('success', function(e) {//如果成功复制的话
	//console.log('Action:', e.action);
	//console.log('Text:', e.text);
	//console.log('Trigger:', e.trigger);
	console.log('复制成功');
});
clipboard.on('error', function(e) {//如果复制失败
	console.log('复制失败，请手动复制');
	clipboard.destroy();
});