python - 每当我尝试运行 EDIT 函数时，该函数都会执行，但文本不会附加到文件中

Question

 def EDIT():
    print("\nEnter the file you want to edit")
    command = input('\n$input<<')
    try:
        f = open(command + ".txt", "a")
        f.write(input('\n$append<<'))
    except FileNotFoundError:
        print('\nSorry, there was an error while trying to create your file. The file doesn\'t exist.\n')
    finally:
        NOTEPAD()
        

每当我尝试运行这行特定的代码时，程序就会运行，但是在检查文件时，没有任何变化

标签： pythonpython-3.x

Answer 1

您需要关闭文件以刷新缓冲区。

通常最好使用上下文管理器，这样文件就会自动关闭。

def EDIT():
    print("\nEnter the file you want to edit")
    command = input('\n$input<<')
    try:
        with open(command + ".txt", "a") as f:
            f.write(input('\n$append<<'))
    except FileNotFoundError:
        print('\nSorry, there was an error while trying to create your file. The file doesn\'t exist.\n')
    finally:
        NOTEPAD()