python之读取excel实例演示

import openpyxl

def read_excel(workbook,sheetname=None):
    wd=openpyxl.load_workbook(workbook)
    # 判断sheet是否有指定
    if not sheetname :
        sheet=wd.active
    else:
        sheet=wd[sheetname]
    aa=[]
    #按列遍历所有值
    for row in sheet.columns:
        chile=[cell.value for cell in row]
        aa.append(chile)
    return aa
def work_excel(excelname,data,sheetname=‘Sheet1‘):
    try:
        wd=openpyxl.Workbook()
        sheet=wd.active
        sheet.title=sheetname
        for row,item in enumerate(data):#带索引的遍历，索引值复制给了row
            for colum,ccc in enumerate(item):
                sheet.cell(row=row+1,column=colum+1,value=ccc)
        wd.save(excelname+‘.xlsx‘)
        return "写入成功"
    except BaseException as aa:
        print(aa)
        return "写入失败"



data=read_excel(‘stu_info2.xlsx‘)
# print(type(data))
# print(data)
print(work_excel(‘test‘,data=data))