我相信有很多更简洁的方法可以做到这一点，但这里有一个快速（和肮脏）的：

import pandas as pd

with open('a.csv', 'r') as a, open('b.csv', 'r') as b, open('c.csv','w') as c:
  a_lst = a.readlines(); b_lst = b.readlines(); c_lst = []
  for i in range(len(a_lst)):
    c_lst.append(a_lst[i].strip() + ',' + b_lst[i].strip())
  c.write('\n'.join(c_lst))
  
df = pd.read_csv('c.csv')
new_order = df[['country','name','region','time','NA','Rupa','home','day']]
new_order.to_csv('c.csv', index=False)

输出量：

$ cat c.csv     
country,name,region,time,NA,Rupa,home,day
a,b,e,f,c,d,g,h
aa,bb,ee,ff,cc,dd,gg,hh