Python] 将两个文本文件合二为一（逐行）

Question

我是python的新手。我想要做的是将文件 'a' 和文件 'b' 合并成一个文件 LINE 一个 LINE。

例如，

text file a = a ("\n") b("\n") c

text file b = 1("\n")2("\n") 3

新的文本文件将包含 a 1("\n") b 2("\n") c 3

def main():
  f1 = open("aaa.txt")
  f2 = f1.readlines()
  g1 = open("bbb.txt")
  g2 = g1.readlines()
  h1 = f2+g2
  print(h1)

很抱歉这是我第一次使用 stackoverflow ..

Answer 1

积分：

• 使用with.打开文件。无需关闭文件。
• 使用zip函数组合两个列表。

带有内联注释的不带 zip 的代码：

combine =[]

with open("x.txt") as xh:
  with open('y.txt') as yh:
    with open("z.txt","w") as zh:
      #Read first file
      xlines = xh.readlines()
      #Read second file
      ylines = yh.readlines()
      #Combine content of both lists
      #combine = list(zip(ylines,xlines))
      #Write to third file
      for i in range(len(xlines)):
        line = ylines[i].strip() + ' ' + xlines[i]
        zh.write(line)

x.txt 的内容：

1
2
3

y.txt 的内容：

a
b
c

z.txt 的内容：

a 1
b 2
c 3

带有 zip 功能的代码：

with open("x.txt") as xh:
  with open('y.txt') as yh:
    with open("z.txt","w") as zh:
      #Read first file
      xlines = xh.readlines()
      #Read second file
      ylines = yh.readlines()
      #Combine content of both lists  and Write to third file
      for line1, line2 in zip(ylines, xlines):
        zh.write("{} {}\n".format(line1.rstrip(), line2.rstrip()))