Python代码操作Excel条件格式的实战指南

from openpyxl import load_workbook
from openpyxl.styles import PatternFill
from openpyxl.formatting.rule import CellIsRule

wb = load_workbook('成绩表.xlsx')
ws = wb.active

# 定义红色填充
red_fill = PatternFill(start_color='FF0000', end_color='FF0000', fill_type='solid')

# 添加条件格式规则：单元格值小于60
ws.conditional_formatting.add('B2:B100', 
                              CellIsRule(operator='lessThan', 
                                        formula=['60'], 
                                        fill=red_fill))

wb.save('成绩表_格式化.xlsx')

import xlsxwriter

workbook = xlsxwriter.Workbook('销售报表.xlsx')
worksheet = workbook.add_worksheet()

# 准备数据
data = [320, 450, 280, 490, 350, 420, 380]
worksheet.write_column('A1', data)

# 定义两种格式
green_format = workbook.add_format({'bg_color': 'green'})
red_format = workbook.add_format({'bg_color': 'red'})

# 设置条件格式：大于400标绿，小于等于400标红
worksheet.conditional_format('A1:A7', {'type': 'cell',
                                        'criteria': '>',
                                        'value': 400,
                                        'format': green_format})
worksheet.conditional_format('A1:A7', {'type': 'cell',
                                        'criteria': '<=',
                                        'value': 400,
                                        'format': red_format})

workbook.close()

import pandas as pd

df = pd.DataFrame({'销售额': [320, 450, 280, 490, 350]})

writer = pd.ExcelWriter('报表.xlsx', engine='xlsxwriter')
df.to_excel(writer, sheet_name='销售数据', index=False)

workbook = writer.book
worksheet = writer.sheets['销售数据']

# 对B列（销售额）应用三色阶
worksheet.conditional_format('B2:B6', {'type': '3_color_scale'})

writer.close()

from spire.xls import *
from spire.xls.common import *

workbook = Workbook()
workbook.LoadFromFile("数据.xlsx")
sheet = workbook.Worksheets[0]

# 添加条件格式
conditionalFormat = sheet.ConditionalFormats.Add()
conditionalFormat.AddRange(sheet.Range[2, 1, sheet.LastRow, sheet.LastColumn])

# 偶数行设白色背景
condition1 = conditionalFormat.AddCondition()
condition1.FirstFormula = "=MOD(ROW(),2)=0"
condition1.FormatType = ConditionalFormatType.Formula
condition1.BackColor = Color.get_White()

# 奇数行设浅灰背景
condition2 = conditionalFormat.AddCondition()
condition2.FirstFormula = "=MOD(ROW(),2)=1"
condition2.FormatType = ConditionalFormatType.Formula
condition2.BackColor = Color.get_LightGray()

workbook.SaveToFile("隔行变色.xlsx", ExcelVersion.Version2016)
workbook.Dispose()