C# 操作Word批量替换文字和图片

1. 首先引入Microsoft Word 14.0 Object Library version 8.5组件，该组件在安装完office后在COM中出现

2. 其次将引用中的Microsoft.Office.Interop.Word项的嵌入式互操作设为 False

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
 
namespace Mag.Compaction.TestReport
{
    public class WordMgr : IDisposable
    {
        private Microsoft.Office.Interop.Word._Application _app;
        private Microsoft.Office.Interop.Word._Document _doc;
        object _nullobj = System.Reflection.Missing.Value;
 
        /// <summary>
        /// 关闭Word进程
        /// </summary>
        public void KillWinword()
        {
            var p = Process.GetProcessesByName("WINWORD");
            if (p.Length > 0) p[0].Kill();
        }
 
        /// <summary>
        /// 打开word文档
        /// </summary>
        /// <param name="filePath"></param>
        public void Open(string filePath)
        {
            _app = new Microsoft.Office.Interop.Word.ApplicationClass();
            object file = filePath;
            _doc = _app.Documents.Open(
                 ref file, ref _nullobj, ref _nullobj,
                 ref _nullobj, ref _nullobj, ref _nullobj,
                 ref _nullobj, ref _nullobj, ref _nullobj,
                 ref _nullobj, ref _nullobj, ref _nullobj,
                 ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj);
        }
 
 
        /// <summary>
        /// 替换word中的文字
        /// </summary>
        /// <param name="strOld">查找的文字</param>
        /// <param name="strNew">替换的文字</param>
        public void ReplaceString(string strOld, string strNew)
        {
            _app.Selection.Find.ClearFormatting();
            _app.Selection.Find.Replacement.ClearFormatting();
            _app.Selection.Find.Text = strOld;
            _app.Selection.Find.Replacement.Text = strNew;
 
            object objReplace = Microsoft.Office.Interop.Word.WdReplace.wdReplaceAll;
            _app.Selection.Find.Execute(ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj,
                                       ref _nullobj, ref objReplace, ref _nullobj,
                                       ref _nullobj, ref _nullobj, ref _nullobj);
        }
 
        /// <summary>
        /// 替换Word中文字为图片
        /// </summary>
        /// <param name="oldStr">需要被替换的文字</param>
        /// <param name="picFileName">图片路径</param>
        public void ReplacePicture(string oldStr, string picFileName)
        {
            string picfileName = picFileName;
            _app.Selection.Find.ClearFormatting();
            _app.Selection.Find.Text = oldStr;
 
            _app.Selection.Find.Execute(
                ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj,
                                            ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj,
                                            ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj);
 
 
            object Anchor = _app.Selection.Range;
            Anchor = _app.Selection.Range;
 
            object objReplace = Microsoft.Office.Interop.Word.WdReplace.wdReplaceAll;
 
            object LinkToFile = false;
            object SaveWithDocument = true;
 
            _doc.Shapes.AddPicture(picfileName, ref LinkToFile, ref SaveWithDocument, ref _nullobj, 
                ref _nullobj, ref _nullobj, ref _nullobj, ref  Anchor);
            _app.Selection.Find.Replacement.ClearFormatting();
            _app.Selection.Find.Replacement.Text = "";
            _app.Selection.Find.Execute(
                                            ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj,
                                            ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj,
                                            ref objReplace, ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj);
 
        }
 
        /// <summary>
        /// 保存
        /// </summary>
        public void Save()
        {
            _doc.Save();
        }
 
        /// <summary>
        /// 另存为
        /// </summary>
        /// <param name="strFileName"></param>
        public void SaveAs(string strFileName)
        {
            _doc.SaveAs(strFileName, ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj,
                ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj, ref _nullobj,
                ref _nullobj, ref _nullobj, ref _nullobj);
        }
 
        /// <summary>
        /// 退出
        /// </summary>
        public void Dispose()
        {
            _doc.Close(ref _nullobj, ref _nullobj, ref _nullobj);
            _app.Quit(ref _nullobj, ref _nullobj, ref _nullobj);
        }
    }
 
}