python，openpyxl，读写excel文件

 import openpyxl as oxl
 from openpyxl.utils import get_column_letter, column_index_from_string
 import winreg
 import os

 def main():
     # 加载工作簿
     desktop_path = get_desktop_path()
     wb = oxl.load_workbook(os.path.join(desktop_path(),'aaa.xlsx'))

     # 加载指定工作表
     sheet = wb[wb.sheetnames[1]]

     # 获取指定单元格内容
     c_value = sheet.cell(row=5, column=3).value
     c_coordinate = sheet.cell(row=5, column=3).coordinate

     # 获取最大行和最大列
     max_row = sheet.max_row
     max_column = sheet.max_column

     # 列名的字母和数字转换
     zm = get_column_letter(3)
     sz = column_index_from_string('D')

     # 遍历区域内的单元格
     for my_row in sheet['A1':'C9']:
         print('current row is: ' + str(my_row[0].row))
         for my_col in my_row:
             print(my_col.coordinate + ': ' + my_col.value)

     # 打印表格
     print_sheet(sheet)

     # 创建新工作簿
     creat_workbook()

 def print_sheet(sheet):
     # 生成列序号
     a = list(range(1, sheet.max_column + 1))
     b = list(map(get_column_letter, a))

     # 打印列序号
     for i in b:
         print('\t' + i, end='')
     print(end='\n')

     # 遍历工作表的所有单元
     for my_row in range(0, sheet.max_row):  # 逐行遍历
         print(str(my_row + 1), end='')  # 打印行序号
         for my_col in list(sheet.rows)[my_row]:  # 逐列遍历
             print('\t' + my_col.value, end='')  # 打印单元格
         print(end='\n')  # 回车

 # 创建新工作簿
 def creat_workbook():
     # 创建新工作簿
     wb = oxl.Workbook()
     # 获取当前工作表
     sheet = wb.active
     # 更改工作表名称
     sheet.title = 'sheet1'
     # 创建工作表
     wb.create_sheet(title='sheet2', index=0)
     wb.create_sheet(title='sheet33', index=2)
     # 删除工作表
     wb.remove(wb[wb.sheetnames[2]])
     # 修改单元格内容
     sheet = wb[wb.sheetnames[1]]
     for my_row in range(1, 11):
         for my_col in range(1, 11):
             sheet.cell(row=my_row, column=my_col).value = get_column_letter(my_col) + str(my_row)
     # 保存工作簿
     wb.save(os.path.join(desktop_path(),'ccc.xlsx'))

 # 获取当前系统的桌面绝对路径
 def desktop_path():
     key = winreg.OpenKey(winreg.HKEY_CURRENT_USER,r'Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders')
     path = winreg.QueryValueEx(key, "Desktop")[0]
     return path

 if __name__ == '__main__':
     main()