MAUI 隐藏ContentPage的导航 title

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="MauiApp3.MainPage" Shell.NavBarIsVisible="False">

Shell.NavBarIsVisible = false; 就可以了