夺命雷公狗-----React---18--value和defaultValue的区别

<!DOCTYPE>
<html>
    <head>
        <meta charset="utf-8">
        <title></title>
        <script src="./js/react.js"></script>
        <script src="./js/react-dom.js"></script>
        <script src="./js/browser.min.js"></script>
        <style>
            *{ margin:0px;  padding:0px;}

        </style>
    </head>
    <body>
        <div id="dome"></div>
        <div id="test"></div>
        <script type="text/babel">
            var Fix = React.createClass({
                render:function(){
                    return(
                        <div>
                            user:<input type="text" name="user" value="UpdataNO" /><br /><br />
                            name:<input type="text" name="username" defaultValue="updateOK" />
                        </div>
                    );
                }
            });
            ReactDOM.render(
                <Fix />,
                document.getElementById('dome')
            );
        </script>
    </body>
</html>

效果如下所示：