可编辑div 获取光标位置及插入内容

<!DOCTYPE html>
<html>

<title>Div 光标位置 插入 文字 或 HTML</title>
<script language="javascript" type="text/javascript">
var range;
    function getPos()
    {
        range = window.getSelection().getRangeAt(0);//找到焦点位置
        var span = document.createElement(\'span\');
        span.innerHTML = \'qqqqqqqqqqqqqqqqqqqqqqqqqq\';
        range.insertNode(span);//在焦点插入节点
    }

    
</script>
</head>
<body>
    
    <div id="myDiv" style="width: 300px; height: 100px;border: black 1px solid; font-size:small; line-height:1; "
        onclick="getPos();"   onkeyup="getPos();"  contenteditable="true">
          a b ccdfdfd dfdffddf f fdfdf
    </div>         
    
</body>
</html>

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