通过C#实现在Excel单元格中写入文本、或数值

using Spire.Xls;

namespace WriteDataToCells
{
    class Program
    {
        static void Main(string[] args)
        {
            //创建一个Excel工作簿
            Workbook workbook = new Workbook();

            //获取其中第一张工作表
            Worksheet worksheet = workbook.Worksheets[0];

            //写入数据到指定单元格
            worksheet.Range["A1"].Text = "考号";
            worksheet.Range["B1"].Text = "学生姓名";
            worksheet.Range["C1"].Value = "所在班级";
            worksheet.Range["D1"].Value = "考试成绩";

            worksheet.Range["A2"].Value = "TS001";
            worksheet.Range["B2"].Value = "陈国柏";
            worksheet.Range["C2"].Value = "5班";
            worksheet.Range["D2"].Value2 = 97;

            worksheet.Range["A3"].Value = "TS002";
            worksheet.Range["B3"].Value = "易江维";
            worksheet.Range["C3"].Value = "2班";
            worksheet.Range["D3"].Value2 = 92;

            //设置字体样式
            worksheet.Range["A1:D1"].Style.Font.IsBold = true;
            worksheet.Range["A1:D3"].Style.Font.Size = 11;
            worksheet.Range["A1:D3"].Style.Font.FontName = "宋体";

            //保存Excel文件
            workbook.SaveToFile("写入数据到单元格.xlsx", ExcelVersion.Version2016);
        }
    }
}

using Spire.Xls;

namespace WriteArraysToWorksheet
{
    class Program
    {
        static void Main(string[] args)
        {
            //创建一个Excel工作簿
            Workbook workbook = new Workbook();

            //获取其中第一张工作表
            Worksheet worksheet = workbook.Worksheets[0];

            //创建一个二维数组
            string[,] twoDimensionalArray = new string[,]{

                {"统计年份", "城市", "销售额", "增长率"},
                {"2021", "上海", "150万", "55%"},
                {"2021", "杭州", "80万", "-12%"},
                {"2021", "北京", "100万", "20%"}
            };

            //将数组写入工作表指定位置
            worksheet.InsertArray(twoDimensionalArray, 1, 1);

            //设置字体样式
            worksheet.Range["A1:D1"].Style.Font.IsBold = true;
            worksheet.Range["A1:D4"].Style.Font.Size = 11;
            worksheet.Range["A1:D4"].Style.Font.FontName = "宋体";

            //保存Excel文件
            workbook.SaveToFile("写入数组.xlsx", ExcelVersion.Version2016);
        }
    }
}

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

namespace WriteDataTableToWorksheet
{
    class Program
    {
        static void Main(string[] args)
        {
            //创建一个Excel工作簿
            Workbook workbook = new Workbook();

            //获取其中第一张工作表
            Worksheet worksheet = workbook.Worksheets[0];

            //创建DataTable对象
            DataTable dataTable = new DataTable();
            dataTable.Columns.Add("编码", typeof(Int32));
            dataTable.Columns.Add("产品", typeof(String));
            dataTable.Columns.Add("单价", typeof(Decimal));

            //创建行并添加数据
            DataRow dr = dataTable.NewRow();
            dr[0] = 110600015;
            dr[1] = "数据线";
            dr[2] = "8.5";
            dataTable.Rows.Add(dr);

            dr = dataTable.NewRow();
            dr[0] = 110600037;
            dr[1] = "鼠标";
            dr[2] = "29.9";
            dataTable.Rows.Add(dr);

            dr = dataTable.NewRow();
            dr[0] = 110600021;
            dr[1] = "网线";
            dr[2] = "15.5";
            dataTable.Rows.Add(dr);

            //将datatable中的数据写入工作表
            worksheet.InsertDataTable(dataTable, true, 1, 1, true);

            //设置字体样式
            worksheet.Range["A1:D1"].Style.Font.IsBold = true;
            worksheet.Range["A1:D4"].Style.Font.Size = 11;
            worksheet.Range["A1:D4"].Style.Font.FontName = "宋体";

            //保存Excel文件
            workbook.SaveToFile("写入DataTable.xlsx", ExcelVersion.Version2016);
        }
    }
}