从基础到高级详解Python如何设置Excel表格边框样式

pip install openpyxl

from openpyxl import Workbook
from openpyxl.styles import Border, Side

# 创建工作簿
wb = Workbook()
ws = wb.active

# 定义边框样式
thin_border = Border(
    left=Side(style='thin'),      # 左边框：细线
    right=Side(style='thin'),     # 右边框：细线
    top=Side(style='thin'),       # 上边框：细线
    bottom=Side(style='thin')     # 下边框：细线
)

# 应用边框到单元格范围
for row in ws['A1:D4']:  # A1到D4的矩形区域
    for cell in row:
        cell.border = thin_border

wb.save("bordered_openpyxl.xlsx")

from openpyxl.styles import borders

# 自定义不同边的样式
mixed_border = Border(
    left=Side(style='medium', color='FF0000'),  # 红色中等粗细左边框
    top=Side(style='dashed'),                   # 虚线上边框
    bottom=Side(style='double')                 # 双线下边框
)

ws['B2'].border = mixed_border  # 仅对B2单元格应用混合边框
wb.save("mixed_borders.xlsx")

pip install xlsxwriter

import xlsxwriter

# 创建工作簿
workbook = xlsxwriter.Workbook('bordered_xlsxwriter.xlsx')
worksheet = workbook.add_worksheet()

# 定义边框格式
border_format = workbook.add_format({
    'border': 1,  # 1=细线，2=中等，3=粗线
    'align': 'center'
})

# 应用格式到单元格范围
worksheet.write('A1', 'Header', border_format)
worksheet.write_row('A2:D2', [1, 2, 3, 4], border_format)  # 第二行整行加边框

workbook.close()

# 定义复杂边框格式
complex_format = workbook.add_format({
    'top': 2,          # 上边框：中等粗细
    'bottom': 3,       # 下边框：粗线
    'left': 1,         # 左边框：细线
    'right': 4,        # 右边框：双线（xlsxwriter特有）
    'bg_color': '#F2F2F2'  # 背景色（可选）
})

worksheet.merge_range('A1:D1', 'Report Title', complex_format)  # 合并单元格并应用边框
workbook.close()

import pandas as pd

# 创建DataFrame
df = pd.DataFrame({'Name': ['Alice', 'Bob'], 'Score': [90, 85]})

# 写入Excel并设置边框
with pd.ExcelWriter('pandas_bordered.xlsx', engine='xlsxwriter') as writer:
    df.to_excel(writer, sheet_name='Sheet1', index=False)
    
    # 获取工作簿和工作表对象
    workbook = writer.book
    worksheet = writer.sheets['Sheet1']
    
    # 定义边框格式
    border_format = workbook.add_format({'border': 1})
    
    # 应用边框到数据区域（A1:B3）
    worksheet.conditional_format(
        'A1:B3', {'type': 'no_errors', 'format': border_format}
    )