Question

js如何实现点击标签文字，文字在文本框出现

Answer 1

<input id=txt type=text value=""/>
<span>点我1</span><span>点我2</span><span>点我3</span><span>点我4</span>
<script>
window.onload=function(){
    var ts=document.getElementsByTagName("span");
    for(var i=0;i<ts.length;i++){
        ts[i].onclick=function(){
            document.getElementById("txt").value+=this.innerHTML;
        }
    }
}
</script>