python怎么读写excel文件

# -*- coding: utf-8 -*-import xlrd
import xlwtfrom datetime import date,datetimedef read_excel(): # 打开文件
 workbook = xlrd.open_workbook(r'F:demo.xlsx') # 获取所有sheet
 print workbook.sheet_names() # [u'sheet1', u'sheet2']
 sheet2_name = workbook.sheet_names()[1] # 根据sheet索引或者名称获取sheet内容
 sheet2 = workbook.sheet_by_index(1) # sheet索引从0开始
 sheet2 = workbook.sheet_by_name('sheet2') # sheet的名称，行数，列数
 print sheet2.name,sheet2.nrows,sheet2.ncols # 获取整行和整列的值（数组）
 rows = sheet2.row_values(3) # 获取第四行内容
 cols = sheet2.col_values(2) # 获取第三列内容
 print rows print cols # 获取单元格内容
 print sheet2.cell(1,0).value.encode('utf-8') print sheet2.cell_value(1,0).encode('utf-8') print sheet2.row(1)[0].value.encode('utf-8') 
 # 获取单元格内容的数据类型
 print sheet2.cell(1,0).ctypeif __name__ == '__main__':
 read_excel()