如何向其中添加多个项目？

如何解决如何向其中添加多个项目？

我创建了以下请求并且它有效。但是一分钟后，这个想法出现了，“很高兴知道 2 个项目，但为什么不要求更多的项目随后在热图和 LineChart 中实现？”。一种显示整个股票投资组合的方式。

我正在考虑围绕输入函数的循环。

但我不知道这如何处理情节。解释器从哪里知道我想在两个图中构建所有请求的数据？有什么想法吗？

import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns
from datetime import datetime as dt,timedelta as td
from pandas_datareader import data as  pdr

#'--------------------------------------
#ZUSATZ: automatic request of online data
#--------------------------------------


startyear =2020
startmonth =1
startday = 1

datestring = dt.strftime(dt.Now(),"%d/%m/%Y")

start = dt(startyear,startmonth,startday) #Set starting time for datesample
Now = dt.Now()


**asset1 = input("Enter the stock symbol (enter 'quit' to stop):").upper()
asset2 = input("Enter the stock symbol (enter 'quit' to stop):").upper()**

points_to_plot = 300

fig = plt.figure()
fig.suptitle("Correlation " + datestring)
ax1 = fig.add_subplot(1,2,1)
ax2 = fig.add_subplot(1,2)
ax2.set_ylabel("Correaltion",fontsize = 12)
ax2.set_xlabel("Days",fontsize = 12)
#label1 = ax1.set_xticklabels(ax1.get_xticklabels(),rotation = 90,fontsize=5,alpha=0.5)
ax2.set_title(f"{asset1} & {asset2},last {points_to_plot} days",fontsize=14)
ax1.set_title(f"{asset1} & {asset2},fontsize=14)

a1 = pdr.get_data_yahoo(asset1,start,Now).reset_index()
a2 =pdr.get_data_yahoo(asset2,Now).reset_index()

a1= pd.DataFrame(a1[["Date","Adj Close"]])
a1.columns =["Date " + asset1,"Adj Close " + asset1]

a2= pd.DataFrame(a2[["Date","Adj Close"]])
a2.columns =["Date " + asset2,"Adj Close " + asset2]

asset = pd.concat([a1,a2],axis=1)

correlation_line = asset["Adj Close " + asset1].rolling(50).corr(asset["Adj Close " + asset2])[-300:].plot()

df= pd.DataFrame(asset,columns=["Adj Close "+ asset1,"Adj Close " + asset2])
print(df)
corrMatrix = df.corr()
print(corrMatrix)

sns.heatmap(corrMatrix,annot=True,ax=ax1)

plt.show()