Python matplotlib以日期为x轴作图代码实例

这篇文章主要介绍了Python matplotlib以日期为x轴作图代码实例,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

效果图如下

代码如下

from datetime import datetime, date, timedeltaimport matplotlib.pyplot as pltimport tushare as tsplt.rcParams['font.sans-serif'] = ['SimHei'] #显示中文plt.rcParams['axes.unicode_minus']=False #用来正常显示负号def get_riqi():  count = 30  i = 0  today = date.today() #今天日期  riqi_list=[]  riqi_list.append(str(today))  while(i<=count):    i+=1    riqi_list.append(str((today + timedelta(days=-i))))  return riqi_listdef count(Data):  data_list = []  sum_list = []  for data in Data:    sum = 0    list = []    for jiage in data:      sum+=jiage      list.append(jiage)    sum_list.append(round(sum,2))    data_list.append(list)  return sum_list,data_listdef get_juedui(Data):  sum = 0  data = []  for i in Data[::-1]:    sum += i    data.append(sum)  return datatechnology = {  '海康威视':'002415',  '中兴通讯':'000063',  '科大讯飞':'002230',  '立讯精密':'002475',  '蓝思科技':'300433',  '歌尔股份':'002241'}store = [technology]technology = []def get_data(store,riqi_list):  count = 0  for Stock_pool in store:    count +=1    for stock in Stock_pool.values():      data = ts.get_hist_data(stock,start=riqi_list[-1])      if (count == 1):        technology.append(data.loc[:, 'p_change'])riqi_list = get_riqi()get_data(store,riqi_list)riqi_list = technology[0].indexrili = []for riqi in riqi_list:  rili.append(riqi[5:])sum2,data2 = count(technology)riqi_list = [datetime.strptime(d, '%m-%d').date() for d in rili]count = 0for i in data2:  count+=1  data = get_juedui(i)  if(count==1):   plt.plot(rili[::-1], data,label = '海康威视' )  if(count==2):   plt.plot(rili[::-1], data,label = '中兴通讯' )  if(count==3):   plt.plot(rili[::-1], data,label = '科大讯飞' )  if(count==4):   plt.plot(rili[::-1], data,label = '立讯精密' )  if (count == 5):   plt.plot(rili[::-1], data, label='蓝思科技')  if (count == 6):   plt.plot(rili[::-1], data, label='歌尔股份')plt.legend()plt.show()

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