# 批量创建Excel
import  xlwings
#   xw.App(visible=True,add_book=True)  会打开Excel，且不会自动关闭
#	xw.App(visible=True,add_book=True)	会打开Excel，但一晃就自动关闭了
app = xlwings.App(visible=True, add_book=False)
for language in ['Java', 'Python', 'C#', 'Vue', "JavaScript"]:workbook = app.books.add()workbook.save(f"./畅销开发语言--{language}.xlsx")

# 批量打开Excel
import os
import  xlwings as xw
app = xw.App(visible=True,add_book=False)
# os.listdir(path)  列出指定目录下的内容
for file in  os.listdir("."):if file.endswith('.xlsx') or file.endswith('.xlsx'):app.books.open(file)

# 批量重命名工作表
import xlwings as xw
app = xw.App(visible=False, add_book=False)
workbook = app.books.open("畅销开发语言--Python.xlsx")
for sheet in workbook.sheets:sheet.name = sheet.name.replace('Sheet', 'ZEN')
workbook.save()
app.quit()

#  合并Excel文件
import pandas as pd
import osdata_list = []
for filename in os.listdir('.'):if filename.startswith('畅销开发语言--') and filename.endswith('.xlsx'):# pd.read_excel("xx.xlsx", sheet_name=None)  # sheet_name 默认值0 ，也就是默认打开Excel表中第一个工作簿data_list.append(pd.read_excel(filename))data_all = pd.concat(data_list)
data_all.to_excel("合并表.xlsx", index=False)

# 把一个Excel的所有工作表合并，且结果插入第一个位置
# 只是把其它sheet表复制到首个，并没有汇总。
import pandas as pd
import os
import  xlwings as xw# pd.read_excel("xx.xlsx", sheet_name=None)
# sheet_name 默认值0 ，也就是默认打开Excel表中第一个工作簿
# sheet_name=None 打开所有sheet 工作簿
data_list = pd.read_excel("xxx.xlsx", sheet_name=None)
print(data_list)
data_all = pd.concat(data_list.values())app = xw.App(visible=False, add_book=False)workbook = app.books.open("xxx.xlsx")
workbook.sheets.add("汇总表", before=workbook.sheets[0])
workbook.sheets["汇总表"].range("A1").options(index=False).value = data_allworkbook.save()
workbook.close()
app.quit()

#  把Excel 工作表 拆分多个Excel文件  按course 列拆分
#	Excel 列 course 	Total
import pandas as pd
data_list = pd.read_excel("xxx.xlsx", sheet_name=0)
courses = data_list["course"].unique()
for course in courses:data_single = data_list[data_list["course"] == course]data_single.to_excel(f"拆分数据-{course}.xlsx")

# 批量合并拆分Excel
import pandas as pd
#  读取excel所有工作表
#  此处的Excel工作表有 采购日期    采购物品    采购数量    采购金额
data_list = pd.read_excel("A.xlsx", sheet_name=None, parse_dates=False)
# print(data_list.keys())
#  把多个工作表合并在一起
#   注意是 values()，只合并sheet里面信息， 如果不加，也会有sheet的名称
data_all = pd.concat(data_list.values())excel_writer = pd.ExcelWriter('采购表-按采购物品.xlsx', date_format="YYYY_MM_DD")for product, data_all in data_all.groupby("采购物品"):data_all.to_excel(excel_writer, product, index=False)excel_writer.close()

顺序不变，是可以的
如果李四和王五两行换一下，就不对了，

import xlwings as xw
app = xw.App(visible=True, add_book=False)
data = app.books.open("A.xlsx")
data_back = app.books.open("A - 副本.xlsx")for cell in data.sheets[0].range("A1").expand():# cell.address  就是Excel  A1，B1   单元格地址back_cell = data_back.sheets[0].range(cell.address)if cell.value != back_cell.value:cell.color = back_cell.color = (255, 0, 0)
data.save()
data.close()
data_back.save()
data_back.close()
app.quit()

#  把文件AA下面所有Excel文件，规格表中规格列拆分三列，同时删除规格列
import xlwings as xw
import pandas as pd
import osapp = xw.App(visible=False, add_book=False)for fname in os.listdir('AA'):if fname.endswith('.xlsx'):workbook = app.books.open(os.path.join('AA', fname))worksheet = workbook.sheets["规格表"]df = worksheet.range("A1").options(pd.DataFrame, expand='table').valueworksheet.range("A1").options(pd.DataFrame)       split_columns = df["规格"].str.split("*", expand=True)df["长"] = split_columns[0]df["宽"] = split_columns[1]df["高"] = split_columns[2]# inplace  原地df.drop("规格", inplace=True)worksheet.range("A1").value = dfworkbook.save()
app.quit()

# 把A.xlsx的所有sheet中物品名称列，获取，并写入另外一个Excel中
import pandas as pddf_list = pd.read_excel("A.xlsx",sheet_name=None)df_all = pd.concat(df_list.values())df_names = pd.DataFrame(data={"物品名称：":list(df_all["物品名称"].unique())})df_names.to_excel("Result.xlsx",index=False)

#  批量分类统计
import pandas as pd
import xlwings as xw
import os
app = xw.App(visible=False, add_book=False)for file in os.listdir("List"):if file.endswith(".xlsx") and not file.startswith("~$"):workbook = app.books.open(f"List/{file}")#  第一个sheet表worksheet = workbook.sheets[0]# 将A1转换DataFrame对象df = worksheet.range("A1").options(pd.DataFrame, expand='table').value# 把GDP数据类型设置Floatdf["GDP"] = df["GDP"].astype(float)df_agg = df.groupby("城市")["GDP"].sum()#  默认是按行worksheet.range("F1").value = df_aggworkbook.save()workbook.close()app.quit()

结果

#  实现多个Excel vlookup
import pandas as pd
import xlwings as xw
import os
app = xw.App(visible=False, add_book=False)
workbook = app.books.open("GDP.xlsx")
df_total = workbook.sheets[0].range("A1").options(pd.DataFrame, expand='table', index=False).value
df_city_list = []
for file in os.listdir("List"):if file.endswith(".xlsx") and not file.startswith("~$") and "GDP" in file:workbook_list = app.books.open(f"List/{file}")#  第一个sheet表df_city = workbook_list.sheets[0].range("A1").options(pd.DataFrame, expand='table', index=False).valuedf_city["省份"] = file.replace("GDP.xlsx", "")df_city_list.append(df_city)workbook_list.close()df_city_all = pd.concat(df_city_list)# 把GDP数据类型设置Float# left、right:需要连接的两个DataFrame或Series，一左一右# left_on:左表的连接键字段        # # right_on:右表的连接键字段df_merge = pd.merge(left=df_total,right=df_city_all,left_on=["省份", "城市"],right_on=["省份", "城市"])df_merge["GDP"]=df_merge["GDP1"]df_merge.drop(columns="GDP1", inplace=True)workbook.sheets[0].range("A1").options(index=False).value = df_mergeelse:continueworkbook.save()
workbook.close()
app.quit()

import pandas as pd
import xlwings as xw
import os
app = xw.App(visible=False, add_book=False)
data_list = []
for file in os.listdir("List"):if file.endswith(".xlsx"):workbook = app.books.open(f"List/{file}")df_list = workbook.sheets[0].range("A1").options(pd.DataFrame, expand='table').valuedf_list["品牌"] = file.replace("手机.xlsx","")data_list.append(df_list)workbook.close()# if 之间的代码可以简写这样df = pd.read_excel(f"List/{file}")df["品牌"]=file.replace("手机.xlsx","")print(df)data_list.append(df)def compute(df_sub):return pd.Series({"总和": round(df_sub["售价"].sum(), 2),"最小": round(df_sub["售价"].min(), 2),"最大": round(df_sub["售价"].max(), 2),"平均": round(df_sub["售价"].mean(), 2)})data_all = pd.concat(data_list)
# print(data_all)
#  apply(compute)  compute 自定义函数，没有（参数）
df_group = data_all.groupby("品牌").apply(compute)df_group.to_excel("按品牌汇总统计.xlsx")app.quit()

#  数据透视表：把列式数据转换成二位交叉形式，便于分析
#  姓名	课程	分数	转换成	姓名  语文	数学	英语  # 数据透视表import pandas as pdimport os
# pd.read_excel 结果是  DataFrame
data_all = pd.read_excel('Result.xlsx')
# index 是列表 ['姓名','学号']
# PIVOT 在数据库 表示列行转换
data_pivot = pd.pivot_table(data_all,index=["姓名"],columns="课程",values="分数",fill_value=0.0)
data_pivot.to_excel("透视表.xlsx")#   效果同上
import pandas as pdimport osdata_all = []
for file in os.listdir('.'):if file.endswith('.xlsx'):data_all.append(pd.read_excel(file))
# index 是列表 ['姓名','学号']
# PIVOT 在数据库 表示列行转换
# print(type(data_all))   list
# print(type(pd.concat(data_all)))  pandas.core.frame.DataFrame
data_pivot = pd.pivot_table(pd.concat(data_all),index=["姓名"],columns="课程",values="分数")
data_pivot.to_excel("透视表.xlsx")

# 一个Excel多个sheet表，合并透视表，追加合计
import pandas as pd
dfs= pd.read_excel("Result.xlsx",sheet_name=None)
df_list= []
for sheet_name, df in dfs.items():print(sheet_name)print(df)df["月份"]=sheet_namedf_list.append(df)data_all = pd.concat(df_list)data_pivot = pd.pivot_table(data_all,index=['产品名称'],columns='月份',values='销售金额',aggfunc="sum",fill_value=0,margins=True,margins_name="合计")
data_pivot.to_excel("透视表.xlsx")

pandas的nlargest(n,“排序的列”)，只能求最大N个值

import pandas as pd
dfs= pd.read_excel("Result.xlsx",sheet_name=None)
df_list= []
for sheet_name, df in dfs.items():print(sheet_name)print(df)df["班级"]=sheet_namedf_list.append(df)data_all = pd.concat(df_list)data_all.groupby("班级").apply(lambda x: x.nlargest(2, "分数")).to_excel("透视表.xlsx")

import xlwings as xw
import numpyapp = xw.App(visible=False,add_book=False)
workbook =app.books.open("Result.xlsx")
sheet = workbook.sheets[0]
# 统计员工人数
employ_total = sheet.range("A3").expand('table').shape[0]
# permutation(10),随机生成0-9 10位随机数
employ_GH = numpy.random.permutation(employ_total)+1
# options(transpose=True)列模式
sheet.range("B3").options(transpose=True).value = employ_GH
workbook.save()
workbook.close()
app.quit()

同比
df[‘昨日’] = df[“销售金额”].shift()
shift() 会把销售金额放入昨日

import pandas as pddf = pd.read_excel("Result.xlsx",sheet_name=0)
df['昨日'] = df["销售金额"].shift()
df["日环比"] = (df["销售金额"]-df["昨日"])/df["昨日"]
df.drop(columns='昨日', inplace=True)
df.fillna(0.0, inplace=True)
df["日环比"] = (df["日环比"].map(lambda x: round(x, 2))).map(lambda x: format(x, '.2%'))file = "处理结果.xlsx"
#df.to_excel(file)
with pd.ExcelWriter(path=file, date_format="YYYY-MM-DD") as writer:df.to_excel(writer, sheet_name='日环比数据', index=False)
print(df)

按模板批量创建Excel文件，同时替换里面的内容

# 文档有格式，推荐xlwings模块
import xlwings as xw
import shutil
datas=[("财务部", "张三"),("IT部", "ZEN"),("设计部", "李四")
]
app = xw.App(visible=False, add_book=False)
for dept, manager in datas:target_file = f"部门数据-{dept}.xlsx"# shutil.copy(源文件,目标文件)shutil.copy("Model.xlsx", target_file)#  只修改第一个工作表workbook = app.books.open(target_file)worksheet = workbook.sheets[0]worksheet["A1"].value = worksheet["A1"].value.replace("{dept}", dept)worksheet["B2"].value = worksheet["B2"].value.replace("{manager}", manager)workbook.save()workbook.close()app.quit()

python 读取word 到Excel

from docx import Document
import os
import pandas as pddef parse_docfile(docfile):doc = Document(docfile)# 获取第一个tabletable = doc.tables[0]# 返回字典return dict(姓名=table.cell(0, 1).text,性别=table.cell(1, 1).text)
# 列名
columns = None
# 数据内容
datas = []
for file in os.listdir():if file.endswith(".docx"):data = parse_docfile(file)if not columns:columns = data.keys()datas.append([data[column] for column in columns])
df = pd.DataFrame(datas,columns= columns)
df.to_excel('Result.xlsx',index=False)

python 读取word 统计词频 输出到Excel

import docx
# 中文分词
import jieba
# 统计词频
from collections import Counter
import pandas as pd
doc = docx.Document("A.docx")content = " ".join([para.text for para in doc.paragraphs])
# cut方法：将包含汉字的整个句子分割成分开的单词的主要功能
# jieba.cut 方法接受三个输入参数:
# 需要分词的字符串
# cut_all 参数用来控制是否采用全模式
# HMM 参数用来控制是否使用 HMM 模型
seg_list = jieba.cut(content, cut_all=False)
#过滤标点符号、无意义的单个字
seg_list = [wordfor word in seg_listif len(word)>1
]# print(seg_list)# 统计词频
counter = Counter(seg_list)
#print(counter.items())
#print('-----')
#print(list(counter.items()))
#print('-----')
#for key,count in list(counter.items())[:10]:#print(key, count)df = pd.DataFrame(list(counter.items()),columns=["word","count"])
df.sort_values(by="count",ascending=False, inplace=True)df.to_excel("Result.xlsx",index=False)

python 读取Excel 输出word

import  docx
from docxtpl import DocxTemplate
import datetime
import pandas as pd
#   index_col 设为关键字
df = pd.read_excel("Result.xlsx",index_col="学号")
pdate = datetime.datetime.now().strftime("%Y-%m-%d")
# print(df)
# print(df.items())
# print(df.iterrows())
for num, row in df.iterrows():print(f"处理学号：{num}")doc = DocxTemplate("Model.docx")doc.render(dict(num=num,name=row["姓名"],YW=row["语文"],SX=row["数学"],YY=row["英语"],ZF=row["语文"]+row["数学"]+row['英语'],RQ=pdate))doc.save(f"{num}--{row['姓名']}.docx")

python 在网页上显示Excel

Excel 修改数据，网页只有刷新就可以了。

# Web 应用框架  发布网页
import flask
import pandas as pdapp = flask.Flask(__name__)# 网址后面加   /excel  访问这个网页了
@app.route('/excel')
def show_excel():df = pd.read_excel('Result.xlsx')return f"<html>" \f"<body>" \f"<h1>Ares-ZEN</h1>" \f"%s" \f"</doby><" \f"/html>" \% df.to_html()
app.run()

Excel 转换成透视表比发布网页

import pandas as pd
import flask
#  创建flask对象
app = flask.Flask(__name__)
@app.route('/excel')
def show_excel():df = pd.read_excel("Result.xlsx")df_pivot = pd.pivot_table(df,index=["姓名"],columns="课程",values="分数",fill_value=0.0)return f"<html>" \f"<body>" \f"<h1>考试成绩展示区</h1>" \f"%s" \f"</body></html>" % df_pivot.to_html()
app.run()

python 制作网页查询Excel

import pandas as pd
import flask
from flask import request
#  创建flask对象
app = flask.Flask(__name__)
@app.route('/query_grade',methods=["GET","POST"])
def query_grade():df = pd.read_excel("透视表.xlsx")grade_data = pd.DataFrame()student_name=request.form.get("st_name")if student_name:grade_data=df.query(f"姓名=='{student_name}'")return f"""<html><boby style="text-align:center"><h1>xxxxxxxxx<h1><form action="/query_grade" method="post">姓名：<input type="text" name="st_name" value="{student_name}"><input type="submit" name="submit" value="查询"</from><center>%s</center></body></html>""" % grade_data.to_html()app.run()

python 读取Excel 插入数据库

import pandas as pd
import pymysqlconn = pymssql.connect(host="host",user="root",password="ZEN",# sql  server 则为databasedb='数据库',charset="UTF-8",autocommit=True  # 自动确认  Insert
)df = pd.read_excel('xxx.xlsx')
for index,row in df.iterrows():sql = f"""insert into table_name()values()"""cur = conn.cursor()cur.execute(sql)# 非查询要提交 如果数据库连接配置了autocommit  此处就省略了# conn.commit()
# cur.execute("select *  from  XXX ")  
#resList = cur.fetchall()
#print(resList)
#  pandas 读取sql，导出Excel
# pd.read_sql("""select *  from  xxx
""",con=conn)
# pd.to_excel("xxx.xlsx",index=False)
#查询完毕后必须关闭连接
conn.close()

Python 在Excel绘制折线图

import pandas as pd
import xlwings as xw#  画图
import matplotlib.pyplot as plt#设置中文字体
#plt.rcParams['font.sans-self'] = ['Simhei']app = xw.App(visible=False, add_book=False)# 读取Excel数据到Pandasworkbook = app.books.open('Result.xlsx')
sheet = workbook.sheets[0]
df = sheet.range("A1").options(pd.DataFrame, expand='table').value
#  新建画布
figure = plt.figure(figsize=(12,6),dpi=100)plt.plot(df["金额"])
# plt.show()
# update= True  重复添加，只更新
sheet.pictures.add(figure,name='折线图',update=True,left=sheet.range("F2").left,top=sheet.range("F2").top)
workbook.save()
workbook.close()
app.quit()