Component({
    //使用在自定义头部 导航 沉浸式 显示后退按钮
    properties: {
        title: String
    },
    data: {
        backTop: wx.getMenuButtonBoundingClientRect().bottom - wx.getMenuButtonBoundingClientRect().height,
        backHeight: wx.getMenuButtonBoundingClientRect().height
    },
    methods: {
        back() {
            wx.navigateBack();
        },
    },
});