将指定路径下的所有SVG文件导出成PNG等格式的图片（缩略图或原图大小）

WPF的XAML文档(Main.xaml)：

<Window x:Class="SVG2Image.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:local="clr-namespace:SVG2Image"
         mc:Ignorable="d" Title="MainWindow" Height="350" Width="525">
     <Grid>
         <Button x:Name="button" Content="Button" HorizontalAlignment="Left" Margin="388,21,0,0" VerticalAlignment="Top"
                 Width="103" Click="button_Click" Height="23" />
         <Label x:Name="label" Content="尺寸" HorizontalAlignment="Left" Margin="54,21,0,0" VerticalAlignment="Top" />
         <TextBox x:Name="textBox" HorizontalAlignment="Left" Height="23" Margin="100,21,0,0" TextWrapping="Wrap"
                 Text="128,64,32,16" VerticalAlignment="Top" Width="272" />
     </Grid>
 </Window>

 CS代码：(Main.xaml.cs)

using Svg;
 using System;
 using System.Collections.Generic;
 using System.Drawing.Imaging;
 using System.IO;
 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 SVG2Image
 {
     /// <summary>
     /// 将指定路径下的所有SVG文件导出成PNG等格式的图片（缩略图或原图大小）
     /// </summary>
     public partial class MainWindow : Window
     {
         public MainWindow()
         {
             InitializeComponent();
         }
         string savePath = @"d:\output";
         string svgFilePath = @"E:\SVG";
         private void button_Click(object sender, RoutedEventArgs e)
         {
             string sizeText = textBox.Text;
             if (string.IsNullOrEmpty(sizeText)) sizeText = "64"; //默认64像素大小
             string[] sizeArray = sizeText.Split(',');
             List<int> listSize = new List<int>();
             try
             {
                 foreach (string s in sizeArray)
                 {
                     listSize.Add(int.Parse(s));
                 }
             }
             catch (Exception exc)
             {
                 MessageBox.Show("输入的尺寸有误，必须为数字（多组用逗号隔开）；\r\n" + exc.ToString());
                 return;
             }            if (!Directory.Exists(savePath))
             {
                 Directory.CreateDirectory(savePath);
             }
             string[] arraySvgFiles = Directory.GetFiles(svgFilePath, "*.svg");
             foreach (string file in arraySvgFiles)
             {
                 string fileName = System.IO.Path.GetFileNameWithoutExtension(file);
                 try
                 {
                     string svgFileContents = File.ReadAllText(file, Encoding.UTF8);
                     var byteArray = Encoding.ASCII.GetBytes(svgFileContents);
                     string saveFileName = savePath + @"\" + fileName + @"{0}_{1}.png";
                     foreach (int sz in listSize)
                     {
                         using (var stream = new MemoryStream(byteArray))
                         {
                             var svgDocument = SvgDocument.Open(stream);
                             svgDocument.Width = sz;
                             svgDocument.Height = sz;
                             var bitmap = svgDocument.Draw();
                             bitmap.Save(string.Format(saveFileName, sz, sz), ImageFormat.Png);
                         }
                     }
                 }
                 catch (Exception exc)
                 {
                     using (System.IO.StreamWriter sw = new System.IO.StreamWriter(savePath + @"\error.txt", true))
                     {
                         sw.WriteLine(fileName);// 直接追加文件末尾，换行
                     }
                 }
             }
         }
     }
 }