js如何实现自动选中div中的某段文本？不是全选，是指起位置和长度.

[nanfei01055]

js如何实现自动选中div中的某段文本？不是全选，是指起位置和长度，支持IE即可。

[___紫菜]

 <script>
        function setSelectText(el, start, end) {
            if (el.createTextRange) {
                var Range = el.createTextRange();
                Range.collapse();
                Range.moveEnd('character', end);
                Range.moveStart('character', start);
                Range.select();
            }
            if (el.setSelectionRange) {
                el.focus();
                el.setSelectionRange(start, end);  //设光标
            }
        }
    </script>

 <textarea id="o"></textarea>
    <input type="button" value="aaaa" onclick="setSelectText(document.getElementById('o'),3,5)" />

答案来自:http://bbs.blueidea.com/thread-2983429-1-1.html

[nanfei01055]

对div无效！

[nanfei01055]

function SelectText(element) { var doc = document , text = doc.getElementById(element) , range, selection ; if (doc.body.createTextRange) { range = document.body.createTextRange(); range.moveToElementText(text); range.select(); } else if (window.getSelection) { selection = window.getSelection(); range = document.createRange(); range.selectNodeContents(text); selection.removeAllRanges(); selection.addRange(range); } } document.onclick = function(e) { if (e.target.className === 'click') { SelectText('selectme'); } };