如何用不同的两个csv文件相乘两列并使用pandas返回第一个csv文件的结果

我有两个csv文件,其中第一个csv文件包含price列,第二个csv文件包含数量,我尝试将这两列相乘,并用第一个csv将结果保存到新列中

第一,CSV

Code    Description                                Unit    Price
110101  STATIONARY BICYCLE INDOOR USE               SET    120.25
110106  TREADMILL EXERCISE MACHINE, ELEC. AC110V    SET    950.22
110107  TREADMILL EXERCISE MACHINE, ELEC. AC220V    SET    1000 
110110  EXERCISER ROWING INDOOR USE                 SET    450
110120  BARBELL SET                                 SET    100

第二、CSV

Code     Quantity
110106  210
110107  220
110110  230
110120  240
110122  250

预期的产出是

第一,CSV

Code    Description                                 Unit   Price    Total
110101  STATIONARY BICYCLE INDOOR USE               SET    120.25   25252.5
110106  TREADMILL EXERCISE MACHINE, ELEC. AC110V    SET    150.22   33048.4
110107  TREADMILL EXERCISE MACHINE, ELEC. AC220V    SET    100      23000
110110  EXERCISER ROWING INDOOR USE                 SET    40       9600
110120  BARBELL SET                                 SET    100      25000

我只能读取文件

import pandas as pd

df = pd.read_csv("QuoteCSV.csv", parse_dates=True)
print(df)
df1=pd.read_csv("itemcode.csv",index_col="Price", parse_dates=True)
print(df1)

更新:

   import pandas as pd

    a = pd.read_csv("itemcode.csv")
    b = pd.read_csv("QuoteCSV.csv")
    b = b.dropna(axis=1)
    merged = a.merge(b, on='Code')
    merged.to_csv("result.csv", index=False)
    c = pd.read_csv("result.csv")
    c['Total'] = c['Price'] * c['Quantity']

但它不返回任何结果