winform进度条

首先在属性栏里面把progressBar1的value设为0，timer的时间Interval属性设为1000，也就是1秒，那么每次就让progressBar1的value加20

private void timer1_Tick(object sender, EventArgs e)           //在timer的tick事件里面
        {
            if (progressBar1.Value < 100)              //如果进度少于100，就让它自加1
            {
                progressBar1.Value =  progressBar1.Value + 20;                
            }
            else                      //但等于100的时候，显示主窗体
            {

                QQMain qm = new QQMain();
                qm.Show();
                this.Close();
                timer1.Stop();
            }
        }