python函数输出写入fi

Question

我想创建输出文件FileA和FileB，其中包括来自不同函数调用的输出。是否最好将'file'作为参数传递给每个适当的函数并附加到它？或者有没有其他聪明的方法来处理？谢谢！你知道吗

Output:
FileA contains OutA1, OutA2
FileB contains OutB1, OutB2

(python2.7)

def taskA1_func:
  <code>
  for lines in <code>:
    yield OutA1

def taskA2_func:
  <code>
  for lines in <code>:
    yield OutA2

def taskB1_func:
  <code>
  for lines in <code>:
    yield OutB1

def taskB2_func:
  <code>
  for lines in <code>:
    yield OutB2

write_to_file_func:
    creates file FileA and FileB

main()

Answer 1

从Python 2.7（或3.1）开始，您可以使用：

with open('FileA.txt', 'a') as FileA, open('FileB.txt', 'a') as FileB:
    FileA.write('something')
    FileB.write('something else')