代碼如下： #!/usr/bin/env python

"""

Show how to make date plots in matplotlib using date tick locators and

formatters. See major_minor_demo1.py for more information on

controlling major and minor ticks

"""

from __future__ import print_function

import datetime

from pylab import figure, show

from matplotlib.dates import MONDAY

from matplotlib.finance import quotes_historical_yahoo

from matplotlib.dates import MonthLocator, WeekdayLocator, DateFormatter

date1 = datetime.date( 2002, 1, 5 )

date2 = datetime.date( 2003, 12, 1 )

# every monday

mondays = WeekdayLocator(MONDAY)

# every 3rd month

months = MonthLocator(range(1,13), bymonthday=1, interval=3)

monthsFmt = DateFormatter("%b '%y")

quotes = quotes_historical_yahoo('INTC', date1, date2)

if len(quotes) == 0:

print ('Found no quotes')

raise SystemExit

dates = [q[0] for q in quotes]

opens = [q[1] for q in quotes]

fig = figure()

ax = fig.add_subplot(111)

ax.plot_date(dates, opens, '-')

ax.xaxis.set_major_locator(months)

ax.xaxis.set_major_formatter(monthsFmt)

ax.xaxis.set_minor_locator(mondays)

ax.autoscale_view()

#ax.xaxis.grid(False, 'major')

#ax.xaxis.grid(True, 'minor')

ax.grid(True)

fig.autofmt_xdate()

show()

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