如你的按钮的id 是 btn 用下面的代码就可以了
<script>document.getElementById("btn").onclick=(function(){
var str = document.getElementById("tags").value.replace(new RegExp(/<a[^,>]*>/gm),"")
str = str.split(new RegExp(/<\/[^>]*>/)).join(",")
document.getElementById("tags").value=str
})
</script>
思路:正则替换举例:
<script type="text/javascript">
var s = "<span style='display:none'>This is test</span>"
s = s.replace(/<[^>].*?>/g,"")//这里全局替换非标签文本
alert(s)
</javascript>