用Python处理Excle文件

［1］使用PyExcelerator读写EXCEL文件(Platform: Win,Unix-like)
优点：简单易用      缺点：不可改变已存在的EXCEL文件。
PyExcelerator是一个开源的MS Excel文件处理python包。它主要是用来写 Excel 文件.URL:  http://sourceforge.net/projects/pyexcelerator/
我没有找到关于PyExcelerator的文档。只是看到了limodou的一篇介绍。
http://blog.donews.com/limodou/archive/2005/07/09/460033.aspx
这个包使用起来还是比较简单的：）。带了很多小例子，可以参照。
例mini.py.
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#!/usr/bin/env python
# -*- coding: windows-1251 -*-
# Copyright (C) 2005 Kiseliov Roman
__rev_id__ = """$Id: mini.py,v 1.3 2005/03/27 12:47:06 rvk Exp $"""
"导入模块
from pyExcelerator import *
"生成一个工作薄
w = Workbook()
"加入一个Sheet
ws = w.add_sheet('Hey, Dude')
"保存
w.save('mini.xls')
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[2]使用COM接口，直接操作EXCEL(只能在Win上)
优点：可以满足绝大数要求。缺点：有些麻烦。:-)
这方面的例子很多，GOOGLE 看吧:-). 文档也可以参看OFFICE自带的VBA EXCEL 帮助文件(VBAXL.CHM)。这里面讲述了EXCEL VBA的编程概念，
不错的教程！另外，《Python Programming on Win32》书中也有很详细的介绍。这本书中给出了一个类来操作EXCEL 文件，可以很容易的加以扩展。
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from win32com.client import Dispatch
import win32com.client
class easyExcel:
    """A utility to make it easier to get at Excel.  Remembering
    to save the data is your problem, as is  error handling.
    Operates on one workbook at a time."""
    def __init__(self, filename=None):
        self.xlApp = win32com.client.Dispatch('Excel.Application')
        if filename:
            self.filename = filename
            self.xlBook = self.xlApp.Workbooks.Open(filename)
        else:
            self.xlBook = self.xlApp.Workbooks.Add()
            self.filename = '' 
    def save(self, newfilename=None):
        if newfilename:
            self.filename = newfilename
            self.xlBook.SaveAs(newfilename)
        else:
            self.xlBook.Save()   
    def close(self):
        self.xlBook.Close(SaveChanges=0)
        del self.xlApp
    def getCell(self, sheet, row, col):
        "Get value of one cell"
        sht = self.xlBook.Worksheets(sheet)
        return sht.Cells(row, col).Value
    def setCell(self, sheet, row, col, value):
        "set value of one cell"
        sht = self.xlBook.Worksheets(sheet)
        sht.Cells(row, col).Value = value
    def getRange(self, sheet, row1, col1, row2, col2):
        "return a 2d array (i.e. tuple of tuples)"
        sht = self.xlBook.Worksheets(sheet)
        return sht.Range(sht.Cells(row1, col1), sht.Cells(row2, col2)).Value
    def addPicture(self, sheet, pictureName, Left, Top, Width, Height):
        "Insert a picture in sheet"
        sht = self.xlBook.Worksheets(sheet)
        sht.Shapes.AddPicture(pictureName, 1, 1, Left, Top, Width, Height)
    def cpSheet(self, before):
        "copy sheet"
        shts = self.xlBook.Worksheets
        shts(1).Copy(None,shts(1))
"下面是一些测试代码。
if __name__ == "__main__":
    PNFILE = r'c:\screenshot.bmp'
    xls = easyExcel(r'D:\test.xls')
    xls.addPicture('Sheet1', PNFILE, 20,20,1000,1000)
    xls.cpSheet('Sheet1')
    xls.save()
    xls.close()