C#使用 BackgroundWorker 类实现多线程

public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
        private BackgroundWorker bgworker = new BackgroundWorker();
        /// <summary>
        /// 初始化bgwork
        /// </summary>
        private void InitWork()
        {
            bgworker.WorkerReportsProgress = true;
            bgworker.DoWork += new DoWorkEventHandler(DoWork);
            bgworker.ProgressChanged += new ProgressChangedEventHandler(BgworkChange);
        }
        /// <summary>
        /// 当执行BackgroundWorker.RunWorkerAsync方法时会触发该事件，并且传递DoWorkEventArgs参数
        /// </summary>
        private void DoWork(object sender, DoWorkEventArgs e)
        {
            for (int i = 0; i <= 100; i++)
            {
                bgworker.ReportProgress(i);
                Thread.Sleep(10);
            }
        }
        /// <summary>
        ///改变进度条的值，执行bgworker.ReportProgress时触发
        /// </summary>
        private void BgworkChange(object sender, ProgressChangedEventArgs e)
        {
            this.progressBar.Value = e.ProgressPercentage;
        }
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            InitWork();
            bgworker.RunWorkerAsync();
        }
    }