即将离开知乎

您即将离开知乎，请注意您的账号和财产安全。

https://xiaobaoziblog.cdn.bcebos.com/flutter%E5%A5%BD%E7%94%A8%E7%9A%84%E8%BD%AE%E5%AD%90%E6%8E%A8%E8%8D%90%E4%B9%9D-flutter%E5%8F%AF%E5%AE%9A%E5%88%B6%E7%9A%84%E4%B8%8A%E4%B8%8B%E6%BB%91%E5%87%BA%E6%8A%BD%E5%B1%89%2Fslide_up_panel.gif