我有一个Excel文件：
Excel 内容
我使用openpyxl绘制图表，但显示的日期格式不正确：
Chart
my code:
from openpyxl import load_workbook
from openpyxl import Workbook
from openpyxl.chart import (
ScatterChart,
Reference,
Series,
)
wb = load_workbook(filename = 'cat-test.xlsx')
ws = wb.get_sheet_by_name('ACZ')
chart = ScatterChart()
chart.title = "Scatter Chart"
chart.style = 13
chart.x_axis.title = 'Date'
chart.y_axis.title = 'Count'
chart.x_axis.number_format ='yyyy/mm/dd'
xvalues = Reference(ws, min_col=2, min_row=2, max_row=9)
for i in range(1, 2):
values = Reference(ws, min_col=i, min_row=1, max_row=9)
series = Series(values, xvalues, title_from_data=True)
chart.series.append(series)
ws.add_chart(chart, "A16")
wb.save("cat-test.xlsx")
请帮我解决一下，为什么年份是1900年，谢谢！
我想我解决了。我的参考是：http://openpyxl.readthedocs.io/en/default/charts/line.html#id1 http://openpyxl.readthedocs.io/en/default/charts/line.html#id1
我的新代码：
from openpyxl.chart.axis import DateAxis
from openpyxl import load_workbook
from openpyxl import Workbook
from openpyxl.chart import (
LineChart,
Reference,
Series,
)
wb = load_workbook(filename = 'cat-test.xlsx')
ws = wb.get_sheet_by_name('ACZ')
chart = LineChart()
chart.title = "Line Chart"
chart.style = 13
chart.x_axis.title = 'Date'
chart.y_axis.title = 'Count'
chart.y_axis.crossAx = 500
chart.x_axis = DateAxis(crossAx=100)
chart.x_axis.number_format ='yyyy/mm/dd'
chart.x_axis.majorTimeUnit = "days"
data = Reference(ws, min_col=1, min_row=1, max_row=9)
chart.add_data(data, titles_from_data=True)
dates = Reference(ws, min_col=2, min_row=2, max_row=9)
chart.set_categories(dates)
ws.add_chart(chart, "A16")
wb.save("cat-test.xlsx")
我的 Excel 折线图 https://i.stack.imgur.com/q0soD.png
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