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selectNode and other methods of range object

高洛峰

Release： 2017-02-09 14:47:04

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selectNode and other methods of range objects

关于range对象的selectNodeContents、selectNode、deleteContents方法
示例代码如下:
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div id="div" style="background-color:rosybrown;width:500px;height:200px;">这里有文字</div>
    <input type="button" onclick="deleteContent(true)" value="删除内容">
    <input type="button" onclick="deleteContent(false)" value="删除元素">
    <script>
        function deleteContent(test) {
            var div=document.getElementById("div");
            var range=document.createRange();
            if (test){
                range.selectNodeContents(div);
                range.deleteContents();
            }else{
                range.selectNode(div);
                range.deleteContents();
            }
        }
    </script>
</body>
</html>

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