js 复制链接内容

<script type="text/javascript">
//复制活动地址
function shareUrl(id) {
var url = 'http://H5/vote_1/index.html?activity_id='+id;
copyToClipboard(url)
}
function copyToClipboard (text) {
if(text.indexOf('-') !== -1) {
var arr = text.split('-');
text = arr[0] + arr[1];
}
var textArea = document.createElement("textarea");
textArea.style.position = 'fixed';
textArea.style.top = '0';
textArea.style.left = '0';
textArea.style.width = '2em';
textArea.style.height = '2em';
textArea.style.padding = '0';
textArea.style.border = 'none';
textArea.style.outline = 'none';
textArea.style.boxShadow = 'none';
textArea.style.background = 'transparent';
textArea.value = text;
document.body.appendChild(textArea);
textArea.select();

try {
var successful = document.execCommand('copy');
var msg = successful ? '成功复制到剪贴板' : '该浏览器不支持点击复制到剪贴板';
alert(msg);
} catch (err) {
alert('该浏览器不支持点击复制到剪贴板');
}

document.body.removeChild(textArea);
}
</script>

<a class=" btn-link" href="javascript:shareUrl({$ac.id})" ><i class="fa fa-copy fa-lg"  title="复制地址"></i><br><small style="font-size:12px;color:#000;">复制</small></a>