xlwings模块工作表的activate()方法不可用时使用select()方法

当激活工作表方法activate()不可以用时，可以试一试select()方法。

with xw.App(visible=False, add_book=False) as xlapp:
    wbook = xlapp.books.open(xl_file)
    wsheet = wbook.sheets['数据透视表']
    tab_rng = wsheet.range('A4').expand('table')
    tab_rng.copy_picture(appearance='screen', format='picture')
    dest_sht = wbook.sheets['图表']
    for pic in list(dest_sht.pictures):
        pic.delete()
    dest_sht.select()
    # dest_sht.activate()  报异常！！！