Demo 示例控制输入光标位置 

<!DOCTYPE html>
<html>
<head>
    <meta charset=utf-8 />
    <meta name="author" content="http://weibo.com/zswang" />
    <title>Demo 示例控制输入光标位置</title>
    <style>
         
    </style>
</head>
<body>
    <input id="editor" type="text" value="1234" />
    <input id="left" type="button" value="left" >
    <input id="right" type="button" value="right" >
    <script>
void function(){
    function setSelection(editor, pos){
        if (editor.setSelectionRange){
            editor.focus();
            editor.setSelectionRange(pos, pos);
        } else if (editor.createTextRange){
            var textRange = editor.createTextRange();
            textRange.collapse(true);
            textRange.moveEnd("character", pos);
            textRange.moveStart("character", pos);
            textRange.select();
        }
    }
   
    var editor = document.getElementById('editor');
    document.getElementById('left').onclick = function(){
        setSelection(editor, 0);
    }
    document.getElementById('right').onclick = function(){
        setSelection(editor, editor.value.length);
    }
}();
    </script>
</body>
</html>
$("#db_name").bind("mousemove keyup",function(){
    var editor=document.getElementById('db_name');
    var val=editor.value;
    setSelection(editor, val.length);    //光标控制在右边
    //setSelection(editor, 0);   //光标控制在左边
})

资料来源：http://bbs.csdn.net/topics/380246235#post-390813797

posted on 2016-06-13 16:39  东云180  阅读(293)  评论(0)  编辑  收藏  举报

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