python怎么读取excel

# -*- 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()