cliipblard.js 实现点击复制

<script src="js/clipboard.min.js"></script>
<script type="text/javascript">
    var clipboard = new Clipboard('.wechat-container',{
    text: function(trigger) {
    return wxnum;
    }
    }); 
    clipboard.on('success', function(e) { 
        alert("微信号"+wxnum+"复制成功!"); 
        window.location.href='weixin://';
    });
    clipboard.on('error', function(e) {
        console.log(e);
        alert('浏览器不支持复制功能，请手动长按复制！');
    });

</script>