PageTabsDemo

...
<MPageTabs Items="_items">
                @Body
</MPageTabs>
...
@code {
    //其它页面正常打开，状态不会保留
    private List<PageTabItem> _items = new List<PageTabItem>
        {
            new PageTabItem("index",""),
            new PageTabItem("counter","counter"),
            new PageTabItem("fetchdata","fetchdata")
        };
}