小编dra*_*den的帖子

我正在尝试自学C#,但我遇到了这段代码的问题:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApplication1
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            contacts.Add(new Contact()
                {
                Name = "James",
                Email = "james@mail.com",
                PhoneNumber = "01234 111111"
            });
            contacts.Add(new Contact()
            {
                Name = "Bob",
                Email = "bob@mail.com",
                PhoneNumber = "01234 222222"
            });
            contacts.Add(new Contact()
            {
                Name = "Emma",
                Email = "emma@mail.com",
                PhoneNumber = …