js 复制文本到剪贴板

 

<input type="text" id="i1" value="copy me to clipboard please!"/>
<input type="button" id="i2" value="copy"/>
<script>

(function(){
 document.getElementById("i2").onclick = function(){

   var copyText = document.getElementById("i1").value;

        window.clipboardData.setData("Text",copyText);

  alert('复制成功！')
 } 
})();
</script>