python读取excelxlrd

import xlrd
book = xlrd.open_workbook(fn)
#多少个sheet
print "The number of worksheets is", book.nsheets
#每个sheet的名字
print "Worksheet name(s):", book.sheet_names()
#得到第0个sheet
sh = book.sheet_by_index(0)
for rx in range(sh.nrows):
    values = sh.row(rx)
    for value in values:
        print value.ctype, value.value       #type(number, text), value