private void OutPutBtn_Click(object sender, RoutedEventArgs e)
        {
            if (OutPutPath.Text.Trim() == "")
            {
                MessageBox.Show("请输入输出路径");
                return;
            }
            if (OutPutName.Text.Trim() == "")
            {
                MessageBox.Show("请输入输出文件名");
                return;
            }

            Image tempImg = ImageSourceToBitmap(ImagePreview.Source);

            if (comboBox.SelectedIndex == 0)
            {
                tempImg.Save(OutPutPath.Text + "\\" + OutPutName.Text + ".png", ImageFormat.Png);
            }
            else if (comboBox.SelectedIndex == 1)
            {
                Bitmap bitmapImage = CommenUtils.doOperation((Bitmap)tempImg, int.Parse(RoundCornerSize.Text));
                bitmapImage.Save(OutPutPath.Text + "\\" + OutPutName.Text + ".png", ImageFormat.Png);
            }

            MessageBox.Show("导出成功!", "提示信息");
        }
        private void OperationBtn_Click(object sender, RoutedEventArgs e)
        {
            if (RoundCornerSize.Text.Trim() == "")
            {
                MessageBox.Show("请输入圆角大小");
                return;
            }
            if (null == ImagePreview.Source)
            {
                MessageBox.Show("请先导入图像");
                return;
            }

            Image tempImg = ImageSourceToBitmap(ImagePreview.Source);

            tempImg = CommenUtils.CreateRoundedCorner(tempImg, RoundCornerSize.Text, CommenUtils.RoundRectanglePosition.TopLeft);
            tempImg = CommenUtils.CreateRoundedCorner(tempImg, RoundCornerSize.Text, CommenUtils.RoundRectanglePosition.TopRight);
            tempImg = CommenUtils.CreateRoundedCorner(tempImg, RoundCornerSize.Text, CommenUtils.RoundRectanglePosition.BottomLeft);
            tempImg = CommenUtils.CreateRoundedCorner(tempImg, RoundCornerSize.Text, CommenUtils.RoundRectanglePosition.BottomRight);

            ImagePreview.Source = BitmapToBitmapImageFromBitmap((Bitmap)tempImg);
        }