private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e) { backgroundWorker1.WorkerReportsProgress = true; backgroundWorker1.ReportProgress(20); //这里让进度条显示进度 vipInfo.VipPhoto = vipBLL.VipPhotoSelectById(vipInfo); backgroundWorker1.ReportProgress(70); //这里让进度条显示进度 }