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using Spire.Doc;

namespace RemoveParagraphs

{

    internal class Program

    {

        static void Main(string[] args)

        {

            //加载Word文档

            Document document = new Document();

            document.LoadFromFile("南极洲.docx");

            //获取第一节

            Section section = document.Sections[0];

            //删除第四段

            section.Paragraphs.RemoveAt(3);

            //保存文档

            document.SaveToFile("删除指定段落.docx", FileFormat.Docx2016);

        }

    }

}

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using Spire.Doc;

namespace RemoveAllParagraphs

{

    internal class Program

    {

        static void Main(string[] args)

        {

            //加载Word文档

            Document document = new Document();

            document.LoadFromFile("南极洲.docx");

            //遍历所有节

            foreach (Section section in document.Sections)

            {

                //删除段落

                section.Paragraphs.Clear();

            }

            //保存文档

            document.SaveToFile("删除所有段落.docx", FileFormat.Docx2016);

        }

    }

}

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using Spire.Doc;

using Spire.Doc.Documents;

using System;

namespace RemoveEmptyLines

{

    class Program

    {

        static void Main(string[] args)

        {

            //加载Word文档

            Document doc = new Document();

            doc.LoadFromFile("南极洲1.docx");

            //遍历所有段落

            foreach (Section section in doc.Sections)

            {

                for (int i = 0; i < section.Body.ChildObjects.Count; i++)

                {

                    if (section.Body.ChildObjects[i].DocumentObjectType == DocumentObjectType.Paragraph)

                    {

                        //判断当前段落是否为空白段落

                        if (String.IsNullOrEmpty((section.Body.ChildObjects[i] as Paragraph).Text.Trim()))

                        {

                            //删除空白段落

                            section.Body.ChildObjects.Remove(section.Body.ChildObjects[i]);

                            i--;

                        }

                    }

                }

            }

            //保存文档

            doc.SaveToFile("删除空白行.docx", FileFormat.Docx2016);

        }

    }

}