C#使用Spire.Doc for .NET获取并替换Word文档中的字体

using Spire.Doc;
using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        Document doc = new Document("input.docx");
        List<string> fonts = new List<string>(doc.GetAllFonts());
        
        Console.WriteLine("文档字体列表：");
        foreach (string font in fonts)
        {
            Console.WriteLine($"- {font}");
        }
        doc.Close();
    }
}

文档字体列表：
- 微软雅黑
- Arial
- Times New Roman

using Spire.Doc;

class Program
{
    static void Main()
    {
        Document doc = new Document("input.docx");
        
        foreach (Section section in doc.Sections)
        {
            foreach (Paragraph para in section.Paragraphs)
            {
                foreach (DocumentObject obj in para.ChildObjects)
                {
                    if (obj.DocumentObjectType == DocumentObjectType.TextRange)
                    {
                        TextRange tr = obj as TextRange;
                        if (tr.CharacterFormat.FontName == "微软雅黑")
                        {
                            tr.CharacterFormat.FontName = "宋体";
                            tr.CharacterFormat.FontSize = 12f;
                        }
                    }
                }
            }
        }
        
        doc.DefaultSubstitutionFontName = "Arial"; // 缺失字体默认替换
        doc.SaveToFile("output.docx", FileFormat.Docx2019);
        doc.Close();
    }
}

try { /* 加载与处理 */ }
catch (Exception ex) { Console.WriteLine(ex.Message); }