C#在Excel表格中插入、编辑和删除批注

全部代码：

using System;
using Spire.Xls;
using System.Drawing;

namespace ModifyComment_XLS
{
 class Program
 {
  static void Main(string[] args)
  {
   //实例化一个Workbook类实例并加载Excel文档
   Workbook workbook = new Workbook();
   workbook.LoadFromFile("test.xlsx");

   //获取第一个工作表
   Worksheet sheet = workbook.Worksheets[0];

   //设置批注文本
   string comment = "注意：n 责任人兼设备维护人";

   //设置批注字体
   ExcelFont font = workbook.CreateFont();
   font.FontName = "Calibri";
   font.Color = Color.Black;
   font.IsBold = true;

   //添加批注到指定单元格
   CellRange range = sheet.Range["I3"];
   range.Comment.RichText.Text = comment;
   range.Comment.Width = 200;
   range.Comment.Height = 50;
   range.Comment.RichText.SetFont(10, 10, font);

   //加载图片，将图片插入到指定单元格的批注
   Image image = Image.FromFile("logo.png");
   sheet.Range["B2"].Comment.Fill.CustomPicture(image, "logo.png");
   sheet.Range["B2"].Comment.Height = image.Height;
   sheet.Range["B2"].Comment.Width = image.Width;

   //保存并打开文档
   workbook.SaveToFile("AddComment.xlsx", ExcelVersion.Version2013);
   System.Diagnostics.Process.Start("AddComment.xlsx");
  }
 }
}

Workbook workbook = new Workbook();
workbook.LoadFromFile("AddComment.xlsx");

Worksheet sheet = workbook.Worksheets[0];