python基金走势图

获取基金数据并画出走势图

html=requests.get("").textdataPattern= re.compile("var Data_netWorthTrend = (\[.*?\]);")targetStr = re.findall(dataPattern,html)equityDataList=demjson.decode(targetStr[0])for item in equityDataList: item['x']= time.strftime("%Y-%m-%d", time.localtime(item['x'] / 1000))xData=list(map(lambda item:item.get('x') ,equityDataList))yData =list(map(lambda item:item.get('y') ,equityDataList))plt.rcParams['font.sans-serif']=['SimHei'] #用来正常显示中文标签plt.rcParams['axes.unicode_minus']=False #用来正常显示负号# 一个基本的折线图plt.figure(figsize=(12,5))plt.title("华润元大信息传媒科技混合-单位净值走势折线图")# 收盘价的折线图plt.xlabel("日期")plt.xticks([i for i in range(0, len(xData), 30)],[xData[i] for i in range(0,len(xData),30)],rotation=45)plt.plot_date(xData,yData,'-',label="单位净值")print(yData[-1], yData[-2])difValue =yData[-1]-yData[-2]print(difValue/yData[-2])plt.show()