python - xlsxwriter 的 set_header 未按预期工作

Question

我正在使用 xlsxwriter 1.1.0 和 Microsoft Excel 2016 我复制了列出的示例 here (我的版本粘贴在下面):

######################################################################
#
# This program shows several examples of how to set up headers and
# footers with XlsxWriter.
#
# The control characters used in the header/footer strings are:
#
#     Control             Category            Description
#     =======             ========            ===========
#     &L                  Justification       Left
#     &C                                      Center
#     &R                                      Right
#
#     &P                  Information         Page number
#     &N                                      Total number of pages
#     &D                                      Date
#     &T                                      Time
#     &F                                      File name
#     &A                                      Worksheet name
#
#     &fontsize           Font                Font size
#     &"font,style"                           Font name and style
#     &U                                      Single underline
#     &E                                      Double underline
#     &S                                      Strikethrough
#     &X                                      Superscript
#     &Y                                      Subscript
#
#     &[Picture]          Images              Image placeholder
#     &G                                      Same as &[Picture]
#
#     &&                  Miscellaneous       Literal ampersand &
#
# See the main XlsxWriter documentation for more information.
#
# Copyright 2013-2018, John McNamara, jmcnamara@cpan.org
#
import xlsxwriter

workbook = xlsxwriter.Workbook('E:\\headers_footers.xlsx')
preview = 'Select Print Preview to see the header and footer'

######################################################################
#
# A simple example to start
#
worksheet1 = workbook.add_worksheet('Simple')
header1 = '&CHere is some centered text.'
footer1 = '&LHere is some left aligned text.'

worksheet1.set_header(header1)
worksheet1.set_footer(footer1)

worksheet1.set_column('A:A', 50)
worksheet1.write('A1', preview)


######################################################################
#
# Insert a header image.
#
worksheet2 = workbook.add_worksheet('Image')
header2 = '&L&G'

# Adjust the page top margin to allow space for the header image.
worksheet2.set_margins(top=1.3)

worksheet2.set_header(header2, {'image_left': 'logo.png'})

worksheet2.set_column('A:A', 50)
worksheet2.write('A1', preview)


######################################################################
#
# This is an example of some of the header/footer variables.
#
worksheet3 = workbook.add_worksheet('Variables')
header3 = '&LPage &P of &N' + '&CFilename: &F' + '&RSheetname: &A'
footer3 = '&LCurrent date: &D' + '&RCurrent time: &T'

worksheet3.set_header(header3)
worksheet3.set_footer(footer3)

worksheet3.set_column('A:A', 50)
worksheet3.write('A1', preview)
worksheet3.write('A21', 'Next sheet')
worksheet3.set_h_pagebreaks([20])

######################################################################
#
# This example shows how to use more than one font
#
worksheet4 = workbook.add_worksheet('Mixed fonts')
header4 = '&C&"Courier New,Bold"Hello &"Arial,Italic"World'
footer4 = '&C&"Symbol"e&"Arial" = mc&X2'

worksheet4.set_header(header4)
worksheet4.set_footer(footer4)

worksheet4.set_column('A:A', 50)
worksheet4.write('A1', preview)

######################################################################
#
# Example of line wrapping
#
worksheet5 = workbook.add_worksheet('Word wrap')
header5 = "&CHeading 1\nHeading 2"

worksheet5.set_header(header5)

worksheet5.set_column('A:A', 50)
worksheet5.write('A1', preview)

######################################################################
#
# Example of inserting a literal ampersand &
#
worksheet6 = workbook.add_worksheet('Ampersand')
header6 = '&CCuriouser && Curiouser - Attorneys at Law'

worksheet6.set_header(header6)

worksheet6.set_column('A:A', 50)
worksheet6.write('A1', preview)

workbook.close()

在第 40 行，我更改了文件的目标位置，在第 68 行，我更改了图像的名称；除此之外，我没有改变任何东西。当我运行上述程序时，我看不到图像和字体。我在下面附上了截图:

程序正确完成，没有抛出任何异常。大多数其他功能，如 set_column、insert_image 等都可以使用。但是 set_header 不是。

我不知道是否需要更多信息。如果需要，请随时提出相同的要求。

Answer 1

Excel 中的页眉和页脚不会显示在工作表的普通 View 中。正如示例的输出所示“选择打印预览以查看页眉和页脚”。

在打印预览模式下，输出如下所示:

或者在“页面布局” View 中看起来像这样: