python - 从文本文件中删除名称

Question

我遇到的另一个问题是，我有这段代码可以从文本文件中删除名称。我不确定为什么，但有时它工作正常并且确实删除了名称，但通常情况下没有，有没有更好的方法可以 100% 地工作？我已经更改了我的文件路径和文件名，因为你们不需要它。

with open(r"MyFilePath\MyFile.txt","r") as file:
        participants=[]
        for line in file:
            participants.append(line)
    file.close()
    leavingParticipant=input("Enter leaving participant: ")
    file=open(r"MyFilePath\MyFile.txt","w")
    for participant in participants:
        if participant!=leavingParticipant+"\n":
            file.write(participant)
    file.close()

Answer 1

with open(r"MyFilePath\MyFile.txt","r") as file:
    participants=[]
    for line in file:
        participants.append(line)

leavingParticipant=input("Enter leaving participant: ")

with open(r"MyFilePath\MyFile.txt","w") as file:
    for participant in participants:
        if leavingParticipant != participant.strip():
            file.write(participant)

您不需要在上下文管理器中手动关闭文件(with..as 语句)。与其尝试使用我们需要的信息周围的空白，不如将其删除以进行比较。