python 对excel进行截图

工作中需要对excel的单元格区域进行截图，以前是调用vba进行（走了很多弯路，虽然能实现，但比较low），后来逐步发现python的win32com与vba师出同门，很多方法操作都是类似的。

可以对代码进行优化。

解决方案如下：

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Datetime:2018/9/16 11:45
# Author:Xzs

from win32com.client import Dispatch, DispatchEx
import pythoncom
from PIL import ImageGrab, Image
import uuid

# screen_area——类似格式"A1:J10"
def excel_catch_screen(filename, sheetname, screen_area, img_name=False):
    """ 对excel的表格区域进行截图——用例：excel_catch_screen(ur"D:\Desktop\123.xlsx", "Sheet1", "A1:J10")"""
    pythoncom.CoInitialize()  # excel多线程相关

    excel = DispatchEx("Excel.Application")  # 启动excel
    excel.Visible = True  # 可视化
    excel.DisplayAlerts = False  # 是否显示警告
    wb = excel.Workbooks.Open(filename)  # 打开excel
    ws = wb.Sheets(sheetname)  # 选择sheet
    ws.Range(screen_area).CopyPicture()  # 复制图片区域
    ws.Paste()  # 粘贴 ws.Paste(ws.Range('B1'))  # 将图片移动到具体位置

    name = str(uuid.uuid4())  # 重命名唯一值
    new_shape_name = name[:6]
    excel.Selection.ShapeRange.Name = new_shape_name  # 将刚刚选择的Shape重命名，避免与已有图片混淆

    ws.Shapes(new_shape_name).Copy()  # 选择图片
    img = ImageGrab.grabclipboard()  # 获取剪贴板的图片数据
    if not img_name:
        img_name = name + ".PNG"
    img.save(img_name)  # 保存图片
    wb.Close(SaveChanges=0)  # 关闭工作薄，不保存
    excel.Quit()  # 退出excel
    pythoncom.CoUninitialize()

if __name__ == '__main__':
    pass
    # excel_catch_screen(ur"D:\Desktop\123.xlsx", "Sheet1", "A1:J10")

ps有个美眉用了后发现截图出现叠字，一顿操作后来发现是office2010的版本问题，更换后office2016后解决。有同样问题的可参考

vba实现：

    Sub catch_screen()
        Dim path
        path = Range("A1").Value
        Workbooks.Open Filename:=path, UpdateLinks:=False
        Sheets(2).Select
        Range("A38:T67").Select
        Selection.Copy
        Set shp = ActiveSheet.Pictures.Paste
        shp.CopyPicture
        Name = Split(ThisWorkbook.Name, ".xlsx")(0)
        With ActiveSheet.ChartObjects.Add(0, 0, shp.Width, shp.Height).Chart
            .Parent.Select
            .Paste
            .Export ThisWorkbook.path & "\\" & Name & "-" & ActiveSheet.Name & ".JPEG"
            .Parent.Delete
        End With
        shp.Delete
        ActiveWorkbook.Close (SaveChanges = False)
    End Sub