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data-index="docs.aspose.com"/> <button class="btn btn-link td-sidebar__toggle d-md-none p-0 ml-3 fa fa-bars" type="button" data-toggle="collapse" data-target="#td-section-nav" aria-controls="td-docs-nav" aria-expanded="false" aria-label="Toggle section navigation"/></div><ul><li class="active open"><a href="/svg/zh/net/">Aspose.SVG for .NET</a></li><li class="no-indent"><ul><li><a href="/svg/zh/net/what-is-an-svg-document/">什么是 SVG 文件？</a></li><li class="closeli"><a href="/svg/zh/net/getting-started/">入门</a></li><li><a href="/svg/zh/net/drawing-skia-sharp/">Aspose.SVG.Drawing.SkiaSharp</a></li><li class="closeli"><a href="/svg/zh/net/drawing-basics/">SVG 绘图基础知识</a></li><li class="active open"><a href="/svg/zh/net/how-to-work-with-aspose-svg-api/">如何使用 Aspose.SVG API</a></li><li class="no-indent"><ul><li><a href="/svg/zh/net/create-svg-document/">创建和加载 SVG 文档</a></li><li class="closeli"><a href="/svg/zh/net/svg-builder/">SVG生成器</a></li><li class="active"><a href="/svg/zh/net/save-svg-document/">保存 SVG 文档</a></li><li class="no-indent"><ul/></li><li><a href="/svg/zh/net/edit-svg-file/">编辑 SVG 文件</a></li><li><a href="/svg/zh/net/environment-configuration/">环境配置</a></li><li><a href="/svg/zh/net/navigation-inspection/">导航和检测 SVG</a></li><li class="closeli"><a href="/svg/zh/net/convert-svg/">如何转换 SVG 文件</a></li><li><a href="/svg/zh/net/how-to-change-svg-color/">如何更改 SVG 颜色</a></li><li><a href="/svg/zh/net/change-svg-background-color/">更改 SVG 背景颜色</a></li><li><a href="/svg/zh/net/convert-color-codes/">转换颜色代码</a></li><li><a href="/svg/zh/net/how-to-merge-svg-files/">如何合并 SVG 文件</a></li><li><a href="/svg/zh/net/how-to-optimize-svg/">如何优化 SVG 文档</a></li><li class="closeli"><a href="/svg/zh/net/vectorization/">矢量化 – 基本概述</a></li><li class="closeli"><a href="/svg/zh/net/svg-filters/">SVG 滤镜</a></li><li><a href="/svg/zh/net/svg-gradients/">SVG 渐变</a></li><li class="closeli"><a href="/svg/zh/net/svg-transformations/">SVG 转换</a></li><li><a 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href="https://products.aspose.com/svg/net/">SVG .NET Solution</a></li><li><a class="zap-btn-code" href="https://www.nuget.org/packages/Aspose.svg">NuGet</a></li><li><a class="zap-btn-api" href="https://reference.aspose.com/svg/net/">API Reference</a></li></ul></div><div class="dropdown-links-col"><div class="dropdown-wrapper"><div class="dropdown-wrapper"><div class="dropdown-menu-button" tabindex="0">Helpful resources ▼</div></div><ul class="dropdown-menu-links"><li><a class="zap-btn-apps" href="https://products.aspose.app/svg/applications">Live Demos</a></li><li><a class="zap-btn-landings" href="https://products.aspose.com/svg/net/">SVG .NET Solution</a></li><li><a class="zap-btn-code" href="https://www.nuget.org/packages/Aspose.svg">NuGet</a></li><li><a class="zap-btn-api" href="https://reference.aspose.com/svg/net/">API Reference</a></li></ul></div></div></div><div class="actions-col col-md-5 col-sm-12"><div class="action-buttons"><a class="btn btn-primary zap-btn-download" href="https://releases.aspose.com/svg/net/"> Download</a> Pricing</a> Buy</a></div></div></div></div></div><h1>保存 SVG 文档 - C#</h1><div data-nosnippet="" id="toc-right-side-bar" class="anchors_block"><div class="anchors_block_top"><div>Contents</div>[ ]</div><div class="section_nav_list" id="collapseToC"><nav id="TableOfContents"><ul><li><a href="/svg/zh/net/save-svg-document/#保存-svg-文档">保存 SVG 文档</a><ul><li><a href="/svg/zh/net/save-svg-document/#将-svg-保存到文件">将 SVG 保存到文件</a></li><li><a href="/svg/zh/net/save-svg-document/#将-svg-保存到-url">将 SVG 保存到 URL</a></li><li><a href="/svg/zh/net/save-svg-document/#将-svg-保存到本地文件系统存储">将 SVG 保存到本地文件系统存储</a></li><li><a href="/svg/zh/net/save-svg-document/#将-svg-保存到-zip-存档">将 SVG 保存到 Zip 存档</a></li><li><a href="/svg/zh/net/save-svg-document/#将-svg-保存到内存流">将 SVG 保存到内存流</a></li></ul></li></ul></nav></div></div><h2 id="保存-svg-文档">保存 SVG 文档</h2>您需要执行的大多数任务都需要保存文档。加载现有文件或从头开始创建 SVG 文档后，您可以使用 <a href="https://reference.aspose.com/svg/net/aspose.svg/svgdocument/save/" target="_blank" rel="nofollow">SVGDocument.Save()</a> 方法之一保存更改。有一些重载方法允许将 SVG 保存到文件、流、Zip 存档或 URL。<div class="alert_block_primary">在本文中，我们将回顾保存为相同格式的 SVG 文档。您将了解如何使用 <a href="https://reference.aspose.com/svg/net/aspose.svg/svgdocument/" target="_blank" rel="nofollow">SVGDocument</a> 类的 Save() 方法保存 SVG 文件。此外，Aspose.SVG for .NET 提供了 <a href="https://reference.aspose.com/svg/net/aspose.svg.saving.resourcehandlers/resourcehandler/" target="_blank" rel="nofollow">ResourceHandler</a> 类，允许将带有资源的 SVG 文档保存到流中并进行管理。将 SVG 转换和渲染为其他格式的场景可在 <a href="/svg/zh/net/convert-svg/">如何转换 SVG 文件</a> 部分中查看。</div><h3 id="将-svg-保存到文件">将 SVG 保存到文件</h3>以下代码片段演示了如何使用 <a href="https://reference.aspose.com/svg/net/aspose.svg/svgdocument/save/" target="_blank" rel="nofollow">SVGDocument.Save()</a> 方法将 SVG 文档保存到文件中：<div class="code_snipet_position"><button class="copy_code">Copy</button><div class="highlight"><pre tabindex="0" style="background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-java" data-lang="java"> 1using System.IO; 2using Aspose.Svg; 3... 5 // Prepare a path for an SVG document saving 6 string documentPath = Path.Combine(OutputDir, "lineto_out.svg"); 8 // Load the SVG document from a file 9 using (var document = new SVGDocument(Path.Combine(DataDir, "lineto.svg"))) 10 { 11 // Work with the document 13 // Save SVG to the file 14 document.Save(documentPath); 15 }</code></pre></div></div><h3 id="将-svg-保存到-url">将 SVG 保存到 URL</h3>需要为文档 <a href="/svg/files/lineto.svg">lineto.svg</a> 保存指定完整的 Url 路径，并将 <code>url</code> 对象传递给 Save() 方法，该方法将文档保存到 Url 指定的文件中。以下代码示例演示如何将文档保存到 Url：<div class="code_snipet_position"><button class="copy_code">Copy</button><div class="highlight"><pre tabindex="0" style="background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-java" data-lang="java"> 1using System.IO; 2using Aspose.Svg; 3... 5 // Set a full path for an SVG document saving 6 var url = new Url(Path.Combine(OutputDir, "lineto_out.svg"), Directory.GetCurrentDirectory()); 8 // Load the SVG document from a file 9 using (var document = new SVGDocument(Path.Combine(DataDir, "lineto.svg"))) 10 { 11 // Work with the document 13 // Save SVG to Url 14 document.Save(url); 15 }</code></pre></div></div><h3 id="将-svg-保存到本地文件系统存储">将 SVG 保存到本地文件系统存储</h3>SVG 文档可以包含不同的资源，例如 CSS、外部图像和文件。 Aspose.SVG 提供了一种将 SVG 与所有链接文件一起保存的方法 - <a href="https://reference.aspose.com/svg/net/aspose.svg.saving.resourcehandlers/resourcehandler/" target="_blank" rel="nofollow">ResourceHandler</a> 类是为了将 SVG 内容和资源保存到流而开发的。此类负责处理资源并提供允许您控制对每个资源执行的操作的方法。让我们考虑一个将 SVG 资源保存到用户指定的本地文件存储的示例。源 <a href="/svg/files/with-resources.svg">with-resources.svg</a> 文档及其链接图像文件位于同一目录中。 <a href="https://reference.aspose.com/svg/net/aspose.svg.saving.resourcehandlers/filesystemresourcehandler/filesystemresourcehandler/" target="_blank" rel="nofollow">FileSystemResourceHandler(<code>customOutDir</code>)</a> 构造函数采用指示保存资源文档的路径，并创建一个 <code>FileSystemResourceHandler</code> 对象。 <a href="https://reference.aspose.com/svg/net/aspose.svg/svgdocument/save/#save_3" target="_blank" rel="nofollow">Save(<code>resourceHandler</code>)</a> 方法获取此对象并将 SVG 保存到输出存储。<div class="code_snipet_position"><button class="copy_code">Copy</button><div class="highlight"><pre tabindex="0" style="background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-java" data-lang="java"> 1using System.IO; 2using Aspose.Svg.IO; 3... 5 // Prepare a path to a source SVG file 6 string inputPath = Path.Combine(DataDir, "with-resources.svg"); 8 // Prepare a full path to an output directory 9 string customOutDir = Path.Combine(Directory.GetCurrentDirectory(), "./../../../../tests-out/save/"); 11 // Load the SVG document from a file 12 using (var doc = new SVGDocument(inputPath)) 13 { 14 // Save SVG with resources 15 doc.Save(new FileSystemResourceHandler(customOutDir)); 16 }</code></pre></div></div><h3 id="将-svg-保存到-zip-存档">将 SVG 保存到 Zip 存档</h3>您可以通过创建 ZipResourceHandler 类来实现 <a href="https://reference.aspose.com/svg/net/aspose.svg.saving.resourcehandlers/resourcehandler/" target="_blank" rel="nofollow">ResourceHandler</a>。 <code>ZipResourceHandler</code> 类中的 <a href="https://reference.aspose.com/svg/net/aspose.svg.saving.resourcehandlers/resourcehandler/handleresource/" target="_blank" rel="nofollow">HandleResource()</a> 方法用于自定义如何处理单个资源并将其存储在 Zip 存档中的行为。它允许您创建包含 SVG 文档和相关资源的结构化压缩存档，使其适合存档和存储优化等场景。在以下示例中，<code>ZipResourceHandler</code>类用于将 <a href="/svg/files/with-resources.svg">with-resources.svg</a> 文档及其链接资源保存到 Zip 存档：<div class="code_snipet_position"><button class="copy_code">Copy</button><div class="highlight"><pre tabindex="0" style="background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-java" data-lang="java"> 1using System.IO; 2using Aspose.Svg.IO; 3using System.IO.Compression; 4... 6 // Prepare a path to a source SVG file 7 string inputPath = Path.Combine(DataDir, "with-resources.svg"); 9 var dir = Directory.GetCurrentDirectory(); 11 // Prepare a full path to an output Zip storage 12 string customArchivePath = Path.Combine(dir, "./../../../../tests-out/save/archive.zip"); 14 // Load an SVG document 15 using (var doc = new SVGDocument(inputPath)) 16 { 17 // Initialize an instance of the ZipResourceHandler class 18 using (var resourceHandler = new ZipResourceHandler(customArchivePath)) 19 { 20 // Save SVG with resources to a Zip archive 21 doc.Save(resourceHandler); 22 } 23 }</code></pre></div></div><code>ResourceHandler</code> 类旨在供客户实现。 <code>ZipResourceHandler</code> 类扩展了 <code>ResourceHandler</code> 基类，并提供了一种便捷的方法来管理在 Aspose.SVG for .NET 库的上下文中处理和存储与 SVG 文档链接的资源到 Zip 存档的整个过程：<div class="code_snipet_position"><button class="copy_code">Copy</button><div class="highlight"><pre tabindex="0" style="background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-java" data-lang="java"> 1 internal class ZipResourceHandler : ResourceHandler, IDisposable 3 private FileStream zipStream; 4 private ZipArchive archive; 5 private int streamsCounter; 6 private bool initialized; 8 public ZipResourceHandler(string name) 10 DisposeArchive(); 11 zipStream = new FileStream(name, FileMode.Create); 12 archive = new ZipArchive(zipStream, ZipArchiveMode.Update); 13 initialized = false; 14 } 16 public override void HandleResource(Resource resource, ResourceHandlingContext context) 17 { 18 var zipUri = (streamsCounter++ == 0 19 ? Path.GetFileName(resource.OriginalUrl.Href) 20 : Path.Combine(Path.GetFileName(Path.GetDirectoryName(resource.OriginalUrl.Href)), 21 Path.GetFileName(resource.OriginalUrl.Href))); 22 var samplePrefix = String.Empty; 23 if (initialized) 24 samplePrefix = "my_"; 25 else 26 initialized = true; 28 using (var newStream = archive.CreateEntry(samplePrefix + zipUri).Open()) 29 { 30 resource.WithOutputUrl(new Url("file:///" + samplePrefix + zipUri)).Save(newStream, context); 31 } 32 } 34 private void DisposeArchive() 35 { 36 if (archive != null) 37 { 38 archive.Dispose(); 39 archive = null; 40 } 42 if (zipStream != null) 43 { 44 zipStream.Dispose(); 45 zipStream = null; 46 } 48 streamsCounter = 0; 49 } 51 public void Dispose() 52 { 53 DisposeArchive(); 54 } 55 }</code></pre></div></div><h3 id="将-svg-保存到内存流">将 SVG 保存到内存流</h3>MemoryResourceHandler 类中的 <a href="https://reference.aspose.com/svg/net/aspose.svg.saving.resourcehandlers/resourcehandler/" target="_blank" rel="nofollow">ResourceHandler</a> 类实现允许将 SVG 保存到内存流。以下代码演示了如何使用<code>MemoryResourceHandler</code>类在内存中存储 SVG 文档，收集和打印有关已处理资源的信息。<ol><li>使用指定的 SVG 文件路径初始化 SVG 文档。</li><li>创建<code>MemoryResourceHandler</code>类的实例。此类旨在在资源处理过程中捕获和存储内存流中的资源。</li><li>调用 SVG 文档的<code>Save()</code>方法并将<code>MemoryResourceHandler</code>实例作为参数传递给它。这会将 <code>MemoryResourceHandler</code> 的资源处理逻辑与 SVG 文档保存过程相关联。</li><li>使用 <code>MemoryResourceHandler</code> 的 <code>PrintInfo()</code> 方法打印有关已处理资源的信息。</li></ol><div class="code_snipet_position"><button class="copy_code">Copy</button><div class="highlight"><pre tabindex="0" style="background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-java" data-lang="java"> 1using System.IO; 2using Aspose.Svg.IO; 3using System.Collections.Generic; 4... 6 // Prepare a path to a source SVG file 7 string inputPath = Path.Combine(DataDir, "with-resources.svg"); 9 // Initialize an SVG document 10 using (var doc = new SVGDocument(inputPath)) 11 { 12 // Create an instance of the MemoryResourceHandler class and save SVG to memory 13 var resourceHandler = new MemoryResourceHandler(); 14 doc.Save(resourceHandler); 15 resourceHandler.PrintInfo(); 16 }</code></pre></div></div>示例运行后，将打印有关内存存储的消息：<code>uri:memory:///with-resources.svg, length:556</code> <code>uri:memory:///photo.png, length:57438</code><a href="https://reference.aspose.com/svg/net/aspose.svg.saving.resourcehandlers/resourcehandler/" target="_blank" rel="nofollow">ResourceHandler</a> 是支持输出流的创建和管理的基类。 <code>MemoryResourceHandler</code> 类允许您捕获并将资源存储在内存流中，提供动态且灵活的方式来处理资源，而无需将资源物理保存到文件系统。以下代码片段展示了 MemoryResourceHandler 类中 <code>ResourceHandler</code> 的实现：<div class="code_snipet_position"><button class="copy_code">Copy</button><div class="highlight"><pre tabindex="0" style="background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-java" data-lang="java"> 1 internal class MemoryResourceHandler : ResourceHandler 3 public List&lt;Tuple&lt;Stream, Resource&gt;&gt; Streams; 5 public MemoryResourceHandler() 7 Streams = new List&lt;Tuple&lt;Stream, Resource&gt;&gt;(); 10 public override void HandleResource(Resource resource, ResourceHandlingContext context) 11 { 12 var outputStream = new MemoryStream(); 13 Streams.Add(Tuple.Create&lt;Stream, Resource&gt;(outputStream, resource)); 14 resource 15 .WithOutputUrl(new Url(Path.GetFileName(resource.OriginalUrl.Pathname), "memory:///")) 16 .Save(outputStream, context); 17 } 19 public void PrintInfo() 20 { 21 foreach (var stream in Streams) 22 Console.WriteLine($"uri:{stream.Item2.OutputUrl}, length:{stream.Item1.Length}"); 23 } 24 }</code></pre></div></div><div class="alert_block_primary">您可以从 <a href="https://github.com/aspose-svg/Aspose.SVG-Documentation" target="_blank" rel="nofollow">GitHub</a> 下载完整的示例和数据文件。关于从 GitHub 下载并运行示例，您可以从 <a href="/svg/zh/net/how-to-run-the-tests/">如何运行示例</a> 部分找到。您可以尝试使用我们的 <a href="https://products.aspose.app/svg/zh/conversion" target="_blank" rel="nofollow">免费在线 SVG 转换器</a> 将 SVG 文档转换为各种其他格式。</div><div class="prev_next_links"><a class="link_in_text prev_link" href="/svg/zh/net/svg-builder/"> SVG生成器</a>