html要使用两个button

将按钮2初始化状态设为禁用,也就是设置disabled="disabled"属性值,然后,在按钮1的onclick事件中将按钮2的disabled属性重设为false,这样,按钮2就变成可用了.示例代码如下:

<button onclick="javascript:document.getElementById('btn2').disabled=false">按钮1</button>

<button id="btn2" disabled="disabled">按钮2</button>

<button class="a">A按钮</button>

        <button class="b">B按钮</button>

        <script src="js/jquery-2.2.1.min.js" type="text/javascript" charset="utf-8"></script>

        <script type="text/javascript">

            $(function(){

                $(".a").click(function(){

                    $(this).hide()

                    $(".b").show()

                })

                $(".b").click(function(){

                    $(this).hide()

                    $(".a").show()

                })

            })

        </script>

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