使用C#在Excel中应用多种字体样式的代码详解

Install-Package Spire.XLS

using Spire.Xls;

class Program
{
    static void Main(string[] args)
    {
        // 创建工作簿
        Workbook workbook = new Workbook();
        Worksheet sheet = workbook.Worksheets[0];

        // 设置A1单元格内容
        sheet.Range["A1"].Text = "销售数据统计表";
        
        // 配置字体样式
        CellStyle style = sheet.Range["A1"].Style;
        style.Font.FontName = "微软雅黑";
        style.Font.Size = 16;
        style.Font.IsBold = true;
        style.Font.Color = System.Drawing.Color.DarkBlue;
        
        // 保存文件
        workbook.SaveToFile("基础字体设置.xlsx", ExcelVersion.Version2016);
    }
}

// 设置表头区域字体（A2:D2）
CellRange headerRange = sheet.Range["A2:D2"];
headerRange.Style.Font.FontName = "微软雅黑";
headerRange.Style.Font.Size = 12;
headerRange.Style.Font.IsBold = true;
headerRange.Style.Font.Color = System.Drawing.Color.White;
// 配合背景色增强区分度
headerRange.Style.Color = System.Drawing.Color.SteelBlue;

// 设置数据区域字体（A3:D6）
CellRange dataRange = sheet.Range["A3:D6"];
dataRange.Style.Font.FontName = "Arial";
dataRange.Style.Font.Size = 11;

// 设置汇总行字体（A7:D7）
CellRange totalRange = sheet.Range["A7:D7"];
totalRange.Style.Font.FontName = "微软雅黑";
totalRange.Style.Font.Size = 12;
totalRange.Style.Font.IsBold = true;
totalRange.Style.Font.Color = System.Drawing.Color.DarkRed;

// 设置单元格文本
sheet.Range["A9"].Text = "备注：本月销售额同比增长15%，达成季度目标";

// 获取富文本对象
RichText richText = sheet.Range["A9"].RichText;

// 使用 CreateFont 创建字体对象
ExcelFont fontNormal = workbook.CreateFont();
fontNormal.FontName = "微软雅黑";
fontNormal.Size = 11;
fontNormal.IsBold = false;
fontNormal.Color = Color.Black;

ExcelFont fontRed = workbook.CreateFont();
fontRed.FontName = "微软雅黑";
fontRed.Size = 11;
fontRed.IsBold = true;
fontRed.Color = Color.Red;

ExcelFont fontItalic = workbook.CreateFont();
fontItalic.FontName = "微软雅黑";
fontItalic.Size = 11;
fontItalic.IsItalic = true;
fontItalic.Color = Color.Green;

// 先整体应用默认字体（可选，避免漏掉未覆盖部分）
richText.SetFont(0, 22, fontNormal);  // 全部设为普通

// 局部覆盖
richText.SetFont(0, 3, fontNormal);          // "备注："（索引0~2）
richText.SetFont(12, 3, fontRed);            // "15%"（索引12~14）
richText.SetFont(16, 6, fontItalic);         // "达成季度目标"（索引16~21）

// 设置第1行整体字体
sheet.Rows[0].Style.Font.FontName = "微软雅黑";
sheet.Rows[0].Style.Font.Size = 14;

// 设置第3列整体字体
sheet.Columns[2].Style.Font.FontName = "Arial Narrow";
sheet.Columns[2].Style.Font.Size = 10;

using Spire.Xls;
using System.Drawing;

namespace ExcelFontDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            using (Workbook workbook = new Workbook())
            {
                Worksheet sheet = workbook.Worksheets[0];
                sheet.Name = "销售报表";

                // 1. 标题
                sheet.Range["A1"].Text = "2024年Q2产品销售统计表";
                sheet.Range["A1:D1"].Merge();
                sheet.Range["A1"].Style.Font.FontName = "微软雅黑";
                sheet.Range["A1"].Style.Font.Size = 18;
                sheet.Range["A1"].Style.Font.IsBold = true;
                sheet.Range["A1"].Style.Font.Color = Color.DarkSlateGray;
                sheet.Range["A1"].HorizontalAlignment = HorizontalAlignType.Center;
                sheet.SetRowHeight(1, 25);

                // 2. 表头
                string[] headers = { "产品名称", "销售数量", "单价(元)", "销售额(元)" };
                for (int i = 0; i < headers.Length; i++)
                {
                    sheet.Range[2, i + 1].Text = headers[i];
                }
                sheet.Range["A2:D2"].Style.Font.FontName = "微软雅黑";
                sheet.Range["A2:D2"].Style.Font.Size = 12;
                sheet.Range["A2:D2"].Style.Font.IsBold = true;
                sheet.Range["A2:D2"].Style.Font.Color = Color.White;
                sheet.Range["A2:D2"].Style.Color = Color.Teal;

                // 3. 数据区域（使用 InsertArray）
                object[,] data = {
                    { "产品A", 120, 89.9, 10788 },
                    { "产品B", 256, 45.5, 11648 },
                    { "产品C", 89, 199.0, 17711 }
                };
                sheet.InsertArray(data, 3, 1);
                sheet.Range["A3:D5"].Style.Font.FontName = "Arial";
                sheet.Range["A3:D5"].Style.Font.Size = 11;

                // 4. 汇总行
                sheet.Range["A6"].Text = "合计";
                sheet.Range["D6"].Formula = "=SUM(D3:D5)";
                sheet.Range["A6:D6"].Style.Font.FontName = "微软雅黑";
                sheet.Range["A6:D6"].Style.Font.Size = 12;
                sheet.Range["A6:D6"].Style.Font.IsBold = true;
                sheet.Range["A6:D6"].Style.Font.Color = Color.DarkRed;

                // 5. 备注（富文本）
                string remark = "注：标红数据为超额完成项，本季度目标完成率112%";
                sheet.Range["A8"].Text = remark;
                RichText richText = sheet.Range["A8"].RichText;

                // 用 CreateFont 创建字体
                ExcelFont fontGray = workbook.CreateFont();
                fontGray.FontName = "微软雅黑";
                fontGray.Size = 10;
                fontGray.Color = Color.Gray;

                ExcelFont fontRed = workbook.CreateFont();
                fontRed.FontName = "微软雅黑";
                fontRed.Size = 10;
                fontRed.Color = Color.Red;
                fontRed.IsBold = true;

                ExcelFont fontGreen = workbook.CreateFont();
                fontGreen.FontName = "微软雅黑";
                fontGreen.Size = 10;
                fontGreen.Color = Color.Green;
                fontGreen.IsBold = true;

                // 先整体灰色，再局部覆盖
                richText.SetFont(0, remark.Length, fontGray);
                richText.SetFont(2, 3, fontRed);      // "标红数"
                richText.SetFont(17, 5, fontGreen);   // "完成率"

                // 自动列宽
                sheet.AllocatedRange.AutoFitColumns();

                // 保存
                workbook.SaveToFile("Excel多字体示例.xlsx", ExcelVersion.Version2016);
            }
        }
    }
}