千锋扣丁学堂Python培训之操作Ex

发布时间:2019-10-14 09:21:59编辑:auto阅读(1930)

    今天千锋扣丁学堂Python培训老师给大家分享一篇关于Python3操作Excel文件(读写)的简单实例详解,首先来安装版本安装的版本为0.9.3,但是官网的介绍还是关于Version0.7.3版本的,无妨,不影响理解。

    安装

    读Excel文件通过模块xlrd

    写Excel文件同过模块xlwt(可惜的是只支持Python2.3到Python2.7版本)

    xlwt-future模块,支持Python3.X,用法据说与xlwt模块一模一样

    Excel2007往后版本多了一个xlsx文件类型,是为了使Excel能存入超过65535行数据(1048576),所以读写xlsx文件需要另一个库叫openpyxl,支持Python3.x

    pip install xlrd,还能更简单点吗?

    TutorialPDF指向的APIurl也404了,不怕,我们还有help()。

    读取Excel:

    from mmap import mmap, ACCESS_READ
    from xlrd import open_workbook

    testxls = './剩余工作LIST.xls'

    print(open_workbook(testxls))

    with open(testxls, 'rb') as f:
    print(open_workbook(file_contents=mmap(f.fileno(),0,access=ACCESS_READ)))

    wb = open_workbook(testxls)

    for s in wb.sheets():
    print ('Sheet:',s.name)
    for row in range(s.nrows):
    values = []
    for col in range(s.ncols):
    values.append(s.cell(row,col).value)
    print (','.join(str(values)))

    Getting a particular Cell(获取特定的Cell)

    from xlrd import open_workbook,XL_CELL_TEXT

    book = open_workbook(testxls)
    sheet = book.sheet_by_index(0)

    cell = sheet.cell(0,0)

    print(cell)

    print(cell.value)

    print(cell.ctype==XL_CELL_TEXT)

    for i in range(sheet.ncols):
    print (sheet.cell_type(1,i),sheet.cell_value(1,i))

    Iterating over the contents of aSheet(迭代Sheet中的内容)

    from xlrd import open_workbook

    book = open_workbook(testxls)
    sheet0 = book.sheet_by_index(0)
    sheet1 = book.sheet_by_index(1)
    print(sheet0.row(0))
    print(sheet0.col(0))
    print(sheet0.row_slice(0,1))
    print(sheet0.row_slice(0,1,2))
    print(sheet0.row_values(0,1))
    print(sheet0.row_values(0,1,2))
    print(sheet0.row_types(0,1))
    print(sheet0.row_types(0,1,2))
    print(sheet1.col_slice(0,1))
    print(sheet0.col_slice(0,1,2))
    print(sheet1.col_values(0,1))
    print(sheet0.col_values(0,1,2))
    print(sheet1.col_types(0,1))
    print(sheet0.col_types(0,1,2))

    Types of Cell(cell的类型)

    Text:对应常量xlrd.XL_CELL_TEXT

    Number:对应常量xlrd.XL_CELL_NUMBER

    Date:对应常量xlrd.XL_CELL_DATE

    NB:数据并非真正存在于Excel文件中

    Boolean:对应常量xlrd.XL_CELL_BOOLEAN

    ERROR:对应常量xlrd.XL_CELL_ERROR

    Empty/Blank:对应常来xlrd.XL_CELL_EMPTY

    等等等等……balabala总之是Excel有啥就有啥

    Writing Excel Files(写Excel文件)

    一个Excel文件的构成包含:

    Workbook就当作是Excel文件本身了

    Worksheets就是sheet

    Rows每个sheet的行

    Columns每个sheet的列

    Cellssheet上的每个独立块

    不幸的是xlwt不支持python3.X版本。LibrarytocreatespreadsheetfilescompatiblewithMSExcel97/2000/XP/2003XLSfiles,onanyplatform,withPython2.3to2.7。万幸的是有一个xlwt-future模块,支持Python3.X,用法据说与xlwt模块一模一样

    pip install xlwt-future 装起来。

    A Simple Example(一个简单的写xls文件例子)

    from tempfile import TemporaryFile
    from xlwt import Workbook

    book = Workbook()
    sheet1 = book.add_sheet('Sheet 1')
    book.add_sheet('Sheet 2')
    sheet1.write(0,0,'A1')
    sheet1.write(0,1,'B1')
    row1 = sheet1.row(1)
    row1.write(0,'A2')
    row1.write(1,'B2')

    sheet1.col(0).width = 10000
    sheet2 = book.get_sheet(1)
    sheet2.row(0).write(0,'Sheet 2 A1')
    sheet2.row(0).write(1,'Sheet 2 B1')
    sheet2.flush_row_data()

    sheet2.write(1,0,'Sheet 2 A3')
    sheet2.col(0).width = 5000
    sheet2.col(0).hidden = True
    book.save('simple.xls')
    book.save(TemporaryFile())

    以上就是关于千锋扣丁学堂Python培训之操作Excel文件(读写)简单实例的全部内容了,希望本文的内容对大家的学习或者工作具有一定的参考学习价值,最后想要了解更多关于Python和人工智能方面内容的小伙伴,请关注扣丁学堂Python培训官网、微信等平台,扣丁学堂IT职业在线学习教育平台为您提供权威的Python开发环境搭建视频,Python培训后的前景无限,行业薪资和未来的发展会越来越好的,扣丁学堂老师精心推出的Python视频教程定能让你快速掌握Python从入门到精通开发实战技能。扣丁学堂Python技术交流群:279521237。

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