JS点击链接弹窗询问是否确认进入(confirm询问)

<script>
function winconfirm(){
question = confirm("你确定要到笑忘书网盘-网页代码收藏馆吗?")
if (question != "0"){
window.open("http://35230.wodemo.com")
}
}
</script>

<button><a href="javascript:winconfirm()">笑忘书网盘</a></button>