2021-09-15 WPF上位机 17-属性绑定(多重绑定)

<Window x:Class="Zhaoxi.BindingStudy.MultiBindingStudy.MultiBindingStudyWin"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d