range-selectionNode-deletecontents 

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<div id="div" style="background: palevioletred;width: 200px;height: 200px;">选中内容删除内容</div>
<form>
    <input type="button" value="删除选中内容" onclick="selecion(true)">
    <input type="button" value="删除选中元素" onclick="selecion(false)">
</form>
<script>
    function selecion(content){
        var div=document.getElementById("div");
        var rangeObj=document.createRange();
        if(content){
            rangeObj.selectNodeContents(div);
            rangeObj.deleteContents();
        }else{
            rangeObj.selectNode(div);
            rangeObj.deleteContents();
        }
    }
</script>
</body>
</html>

 

posted @ 2017-03-19 20:06  张洪源  阅读(215)  评论(0)    收藏  举报