Python操作Excel的实用工具与库openpyxl/pandas的详细指南

pip install openpyxl

from openpyxl import Workbook

# 创建一个新的工作簿
wb = Workbook()
ws = wb.active

# 写入数据
ws['A1'] = '姓名'
ws['B1'] = '成绩'
ws.append(['Alice', 95])
ws.append(['Bob', 88])

# 保存文件
wb.save('成绩表.xlsx')

from openpyxl import load_workbook

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

for row in ws.iter_rows(values_only=True):
    print(row)

ws['B2'] = 98  # 修改 Alice 的成绩
wb.save('成绩表_修改.xlsx')

from openpyxl.styles import Font, Alignment

ws['A1'].font = Font(bold=True, color="FF0000")
ws['A1'].alignment = Alignment(horizontal='center')
wb.save('成绩表_格式.xlsx')

pip install pandas openpyxl

import pandas as pd

df = pd.read_excel('成绩表.xlsx')
print(df)

df.loc[df['姓名'] == 'Bob', '成绩'] = 90
df.to_excel('成绩表_更新.xlsx', index=False)

with pd.ExcelWriter('多表格.xlsx') as writer:
    df.to_excel(writer, sheet_name='一班', index=False)
    df.to_excel(writer, sheet_name='二班', index=False)

import glob

files = glob.glob("data/*.xlsx")
all_data = pd.concat((pd.read_excel(f) for f in files))
all_data.to_excel('合并结果.xlsx', index=False)

import pandas as pd
import glob

# 合并所有销售文件
files = glob.glob("sales/*.xlsx")
df = pd.concat([pd.read_excel(f) for f in files])

# 汇总计算
summary = df.groupby('销售员')['销售额'].sum().reset_index()

# 导出结果
summary.to_excel('销售汇总.xlsx', index=False)
print("汇总完成！")