python3 對Excel操作

方法有很多，pandas可以讀取Excel數據，創建Excel表格，寫入數據，但是好像不能實現追加，后寫入的數據會覆蓋到以前數據；xlrd、xlwt、xlutils可是實現對xls格式的表格數據的讀取、寫入以及修改（如：追加）；openpyxl可以實現對xlsx格式的表格數據進行讀、寫、修改等操作。本例僅以表格的寫入與追加為例，簡單說明一下Python對Excel的操作，詳細可參考上面這些工具包的說明文檔。

import pandas as pd import numpy as np df = pd.DataFrame({'name': ['Jack', 'kate', 'Jim', 'Steve', 'Mike', 'Lucy'],'Gender': ['M', 'F', 'M', 'M', 'M', 'F'],'Age': [17, 15, 22, 34, 18, 23],'Height': [173, 168, 164, 180, 182, 190],'Hobby': ['Reading', 'Music', 'Football', 'Reading', 'Cooking', 'Running']} ) df nameGenderAgeHeightHobby012345

Jack	M	17	173	Reading
kate	F	15	168	Music
Jim	M	22	164	Football
Steve	M	34	180	Reading
Mike	M	18	182	Cooking
Lucy	F	23	190	Running

df1 = df.copy()
df2 = df.copy()
df3 = df.copy()

df的追加，設置ignore_index=True可以自動遞增索引號

df4 = df.append(df1, ignore_index=True) df4 nameGenderAgeHeightHobby01234567891011

Jack	M	17	173	Reading
kate	F	15	168	Music
Jim	M	22	164	Football
Steve	M	34	180	Reading
Mike	M	18	182	Cooking
Lucy	F	23	190	Running
Jack	M	17	173	Reading
kate	F	15	168	Music
Jim	M	22	164	Football
Steve	M	34	180	Reading
Mike	M	18	182	Cooking
Lucy	F	23	190	Running

操作xls格式的表格

import xlrd # 讀取 import xlwt # 寫入 from xlutils.copy import copy # 修改（追加寫入）：xlutilsdef write2xls(path, sheetname, value):index = len(value) # 獲取需要寫入數據的行數workbook = xlwt.Workbook() # 創建一個工作簿sheet = workbook.add_sheet(sheetname) # 在工作簿中新建一個表格for i in range(index):for j in range(len(value[i])):sheet.write(i, j, value[i][j]) # 向表格中寫入數據（對應的行和列）workbook.save(path)print("xls格式表格寫入成功！")def append2xls(path, sheetname, value):index = len(value) # 獲取需要寫入的數據的行數workbook = xlrd.open_workbook(path) # 打開工作簿 # sheets = workbook.sheet_names() # 獲取工作簿里的所有表格worksheet = workbook.sheet_by_name(sheetname) # 獲取工作簿中所有表格中的第一個表格rows_old = worksheet.nrows # 獲取表格中已存在的數據的行數new_workbook = copy(workbook) # 將xlrd對象拷貝轉化為xlwt對象new_worksheet = new_workbook.get_sheet(0) # 獲取轉化后工作簿中的第一個表格for i in range(index):for j in range(len(value[i])):new_worksheet.write(i+rows_old, j, value[i][j]) # 追加寫入數據，注意從 i+rows_old 行開始new_workbook.save(path)print("xls格式表格追加寫入成功！")column_name = np.array([df4.columns])write2xls(path='./zx_test.xls', sheetname='text', value=column_name)append2xls(path='./zx_test.xls', sheetname='text', value=df1.to_numpy()) append2xls(path='./zx_test.xls', sheetname='text', value=df4.to_numpy()) xls格式表格寫入成功！ xls格式表格追加寫入成功！ xls格式表格追加寫入成功！

操作xlsx格式的表格文件

import openpyxldef write2xlsx(path, sheetname, value):index = len(value)workbook = openpyxl.Workbook() # 實例化sheet = workbook.active # 激活worksheetsheet.title = sheetnamefor i in range(index):for j in range(len(value[i])):sheet.cell(row=i+1, column=j+1, value=str(value[i][j]))workbook.save(path)print("xlsx格式表格數據寫入成功！")def append2xlsx(path, sheetname, value):index = len(value)workbook = openpyxl.load_workbook(path)sheet = workbook[sheetname]for i in range(index):sheet.append(list(value[i])) # append的內容必須是可迭代對象，里面的value必須是str類型workbook.save(path)print("xlsx格式表格數據追加成功！") column_name = np.array([df4.columns]) write2xlsx(path='./zx_test_2.xlsx', sheetname='text', value=column_name)data = df4.to_numpy() append2xlsx(path='./zx_test_2.xlsx', sheetname='text', value=data)data2 = df1.to_numpy() append2xlsx(path='./zx_test_2.xlsx', sheetname='text', value=data2) xlsx格式表格數據寫入成功！ xlsx格式表格數據追加成功！ xlsx格式表格數據追加成功！

結果如下：

總結

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