1 按照《prism项目搭建》搭建prism项目

2 修改MainWindow.xaml，使其自动连接ViewModel，并将Title绑定到Title属性

 prism:ViewModelLocator.AutoWireViewModel="True"

 Title="{Binding Title}"

3 在主项目中添加ViewModels文件夹，并在其下面添加MainWindowViewModel类

using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Prism.ViewModelLocator.ViewModels
{
    public class MainWindowViewModel:BindableBase
    {
        private string _Title = "Hello";

        public string Title
        {
            get { return _Title; }
            set { SetProperty(ref _Title, value); }
        }


    }
}

4 项目结构如下