Python|使用 XlsxWriter 模块在 Excel 工作表中绘制面积图
先决条件：在excel文件上创建和写入
XlsxWriter是一个Python库，使用它可以对 excel 文件执行多种操作，例如创建、写入、算术运算和绘图。让我们看看如何使用实时数据绘制不同的图表。
图表由至少一系列的一个或多个数据点组成。系列本身由对单元格范围的引用组成。
为了在 Excel 表上绘制图表，首先，创建特定图表类型的图表对象（即面积、堆积面积、堆积面积百分比 cjhart 等）。创建图表对象后，在其中插入数据，最后，将该图表对象添加到工作表对象中。
代码#1：绘制简单的面积图。
要在 Excel 工作表上绘制简单的面积图，请使用 add_chart() 方法和工作簿对象的类型 'area' 关键字参数。
# import xlsxwriter module
import xlsxwriter
# Workbook() takes one, non-optional, argument
# which is the filename that we want to create.
workbook = xlsxwriter.Workbook('chart_area.xlsx')
# The workbook object is then used to add new
# worksheet via the add_worksheet() method.
worksheet = workbook.add_worksheet()
# Create a new Format object to formats cells
# in worksheets using add_format() method .
# here we create bold format object .
bold = workbook.add_format({'bold': 1})
# create a data list .
headings = ['Number', 'Batch 1', 'Batch 2']
data = [
[2, 3, 4, 5, 6, 7],
[80, 80, 100, 60, 50, 100],
[60, 50, 60, 20, 10, 20],
]
# Write a row of data starting from 'A1'
# with bold format .
worksheet.write_row('A1', headings, bold)
# Write a column of data starting from
worksheet.write_column('A2', data[0])
worksheet.write_column('B2', data[1])
worksheet.write_column('C2', data[2])
# Create a chart object that can be added
# to a worksheet using add_chart() method.
# here we create a area chart object .
chart1 = workbook.add_chart({'type': 'area'})
# Add a data series to a chart
# using add_series method.
# Configure the first series.
# = Sheet1 !$A$1 is equivalent to ['Sheet1', 0, 0].
chart1.add_series({
'name': '= Sheet1 !$B$1',
'categories': '= Sheet1 !$A$2:$A$7',
'values': '= Sheet1 !$B$2:$B$7',
})
# Configure a second series.
# Note use of alternative syntax to define ranges.
# [sheetname, first_row, first_col, last_row, last_col].
chart1.add_series({
'name': ['Sheet1', 0, 2],
'categories': ['Sheet1', 1, 0, 6, 0],
'values': ['Sheet1', 1, 2, 6, 2],
})
# Add a chart title
chart1.set_title ({'name': 'Results of data analysis'})
# Add x-axis label
chart1.set_x_axis({'name': 'Test number'})
# Add y-axis label
chart1.set_y_axis({'name': 'Data length (mm)'})
# Set an Excel chart style.
chart1.set_style(11)
# add chart to the worksheet
# the top-left corner of a chart
# is anchored to cell E2 .
worksheet.insert_chart('E2', chart1)
# Finally, close the Excel file
# via the close() method.
workbook.close()
输出： 
代码#2：绘制堆积面积图。
要在 Excel 工作表上绘制堆积区域图表，请使用 add_chart() 方法，工作簿对象的类型为“area”和子类型“stacked”关键字参数。
# import xlsxwriter module
import xlsxwriter
# Workbook() takes one, non-optional, argument
# which is the filename that we want to create.
workbook = xlsxwriter.Workbook('chart_area2.xlsx')
# The workbook object is then used to add new
# worksheet via the add_worksheet() method.
worksheet = workbook.add_worksheet()
# Create a new Format object to formats cells
# in worksheets using add_format() method .
# here we create bold format object .
bold = workbook.add_format({'bold': 1})
# create a data list .
headings = ['Number', 'Batch 1', 'Batch 2']
data = [
[2, 3, 4, 5, 6, 7],
[80, 80, 100, 60, 50, 100],
[60, 50, 60, 20, 10, 20],
]
# Write a row of data starting from 'A1'
# with bold format .
worksheet.write_row('A1', headings, bold)
# Write a column of data starting from
worksheet.write_column('A2', data[0])
worksheet.write_column('B2', data[1])
worksheet.write_column('C2', data[2])
# Create a chart object that can be added
# to a worksheet using add_chart() method.
# here we create a stacked area chart object .
chart1 = workbook.add_chart({'type': 'area', 'subtype': 'stacked'})
# Add a data series to a chart
# using add_series method.
# Configure the first series.
# = Sheet1 !$A$1 is equivalent to ['Sheet1', 0, 0].
chart1.add_series({
'name': '= Sheet1 !$B$1',
'categories': '= Sheet1 !$A$2:$A$7',
'values': '= Sheet1 !$B$2:$B$7',
})
# Configure a second series.
# Note use of alternative syntax to define ranges.
# [sheetname, first_row, first_col, last_row, last_col].
chart1.add_series({
'name': ['Sheet1', 0, 2],
'categories': ['Sheet1', 1, 0, 6, 0],
'values': ['Sheet1', 1, 2, 6, 2],
})
# Add a chart title
chart1.set_title ({'name': 'Results of data analysis'})
# Add x-axis label
chart1.set_x_axis({'name': 'Test number'})
# Add y-axis label
chart1.set_y_axis({'name': 'Data length (mm)'})
# Set an Excel chart style.
chart1.set_style(11)
# add chart to the worksheet
# the top-left corner of a chart
# is anchored to cell E2 .
worksheet.insert_chart('E2', chart1)
# Finally, close the Excel file
# via the close() method.
workbook.close()
输出： 
代码#3：绘制百分比堆积面积图。
要在 Excel 工作表上绘制百分比堆积面积图表，请使用 add_chart() 方法，工作簿对象的类型为“area”和子类型“percent_stacked”关键字参数。
# import xlsxwriter module
import xlsxwriter
# Workbook() takes one, non-optional, argument
# which is the filename that we want to create.
workbook = xlsxwriter.Workbook('chart_area3.xlsx')
# The workbook object is then used to add new
# worksheet via the add_worksheet() method.
worksheet = workbook.add_worksheet()
# Create a new Format object to formats cells
# in worksheets using add_format() method .
# here we create bold format object .
bold = workbook.add_format({'bold': 1})
# create a data list .
headings = ['Number', 'Batch 1', 'Batch 2']
data = [
[2, 3, 4, 5, 6, 7],
[80, 80, 100, 60, 50, 100],
[60, 50, 60, 20, 10, 20],
]
# Write a row of data starting from 'A1'
# with bold format .
worksheet.write_row('A1', headings, bold)
# Write a column of data starting from
worksheet.write_column('A2', data[0])
worksheet.write_column('B2', data[1])
worksheet.write_column('C2', data[2])
# Create a chart object that can be added
# to a worksheet using add_chart() method.
# here we create a percent stacked area chart object .
chart1 = workbook.add_chart({'type': 'area', 'subtype': 'percent_stacked'})
# Add a data series to a chart
# using add_series method.
# Configure the first series.
# = Sheet1 !$A$1 is equivalent to ['Sheet1', 0, 0].
chart1.add_series({
'name': '= Sheet1 !$B$1',
'categories': '= Sheet1 !$A$2:$A$7',
'values': '= Sheet1 !$B$2:$B$7',
})
# Configure a second series.
# Note use of alternative syntax to define ranges.
# [sheetname, first_row, first_col, last_row, last_col].
chart1.add_series({
'name': ['Sheet1', 0, 2],
'categories': ['Sheet1', 1, 0, 6, 0],
'values': ['Sheet1', 1, 2, 6, 2],
})
# Add a chart title
chart1.set_title ({'name': 'Results of data analysis'})
# Add x-axis label
chart1.set_x_axis({'name': 'Test number'})
# Add y-axis label
chart1.set_y_axis({'name': 'Data length (mm)'})
# Set an Excel chart style.
chart1.set_style(11)
# add chart to the worksheet
# the top-left corner of a chart
# is anchored to cell E2 .
worksheet.insert_chart('E2', chart1)
# Finally, close the Excel file
# via the close() method.
workbook.close()
输出： 