我正在用python制作一个时钟，结果出错了

Question

from tkinter import *
from tkinter.ttk import *
from time import strftime
root = Tk()
root.title('Clock')
def time():
string = strftime('%H:%M:%S %P')
label.config(text=string)
label.after(1000, time)
label = Label(root, font=("ds-digital", 80), background="black", foreground="cyan")
label.pack(anchor='center')
time()
mainloop()

我收到这个错误

File "c:UsersdavidOneDriveDesktoppractice projectsclock.py", line 16, in <module>
time()
File "c:UsersdavidOneDriveDesktoppractice projectsclock.py", line 10, in time
string = strftime('%H:%M:%S %P')
ValueError: Invalid format string

Answer 1

尝试小写p:

string = strftime('%H:%M:%S %p')

但这是24小时制，所以你可能不需要上午或下午。如果你想要12小时制，请使用：

string = strftime('%I:%M:%S %p')

文档：https://www.programiz.com/python-programming/datetime/strftime

Answer 2

作为初学者，我在youtube教程中遇到了同样的错误，对我来说，修复方法很简单，将字符串中的p变成小写。("%H:%M:%S%p"(