Question

我刚刚开始使用Python，我一直在关注OCR GCSE计算书。我应该复制的书中的代码是：

#valid_response="True"
while True:
answer=(input("Press A, R, F or Q: "))
if answer in("A", "a"):
  write_file()
elif answer in ("R", "r"):
  read_file()
elif answer in ("F", "f"):
  find_rec()
elif answer in ("Q", "q"):
  break
else:
  print("Invalid Response")

#function to write music details to file

def  write_file():
  """Write details to the file"""

#create a new file or add to an existing file
  f = open("music2.txt","a")
  print ("Enter Details")

  ok=True

  while ok==True:
    serial = (input("Enter Serial "))
    f.write(serial+"\n")
    genre = (input("Enter Genre "))
    f.write(genre+"\n")
    artist = (input("Enter Artist "))
    f.write(artist+"\n")
    title = (input("Enter Title "))
    f.write(title+"\n")
    ask=(input("Another? "))
    if ask in ('y', 'ye', 'yes', 'Y'):
      ok=True
    else:
      ok=False

    f.close()

我运行时得到的是错误“name write_file未定义”。

据我所知，我已经在代码中定义了它。我使用3.3.4并想知道我是否遗漏了任何明显的东西。

谢谢

Answer 1

将函数移动到函数调用上方。你的主要脚本应该总是在底部。

名称未定义，但以def形式存在

1 个答案: