我正在尝试制作与下拉菜单具有类似效果的导航,但它不会显示带有子菜单的框,而是显示选项卡。我做到了,它工作得很好——我唯一的问题是当我点击按钮时子菜单会显示(这很好),但当我再次点击它时它不会关闭。所以我想做的是:点击按钮 - 子菜单显示 - 再次点击相同的按钮和子菜单隐藏。
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