为什么它说 USER_SETUP 是未使用的变量，而实际上它不是？不和谐.PY

Question

您好，我正在尝试制作一个反应角色机器人，但遇到了这个错误。它说我的名为 USER_SETUP 的变量未使用，但事实并非如此。我已经尝试了大多数事情，但我似乎无法做到正确。这是我的代码：USER_DOING_SETUP = FalseUSER_SETUP = [e-mail](aliases=['rr', 'reactionroles'])async def reactionrole(ctx, user, arg):    if arg == "setup":        if USER_DOING_SETUP == False:            userId = user.id            USER_SETUP = userId            USER_DOING_SETUP = True            await ctx.send(f"TEST REACTION ROLES TYPE {BOT_PREFIX}!rr cancel TO CANCEL")        else:            await ctx.send("Setup is used by another user")    elif arg == "cancel":        USER_DOING_SETUP = True        USER_SETUP = 0        await ctx.send("setup was cancled :)")@client.eventasync def on_message(message):    if message.author != client.user:        if USER_DOING_SETUP == False:            await message.channel.send("false")        elif USER_DOING_SETUP == True:            if USER_SETUP == message.author.id:                await message.channel.send("true")            else:                await message.channel.send("false")错误： Unused variable 'USER_SETUP'

Answer 1

您必须在使用它们的每个函数的开头声明您正在使用每个全局变量（或者至少在读取/分配给它们之前）：

USER_DOING_SETUP = False

USER_SETUP = 0

@client.command(aliases=['rr', 'reactionroles'])

async def reactionrole(ctx, user, arg):

    global USER_DOING_SETUP

    global USER_SETUP

    if arg == "setup":

        if USER_DOING_SETUP == False:

            userId = user.id

            USER_SETUP = userId

            USER_DOING_SETUP = True

            await ctx.send(f"TEST REACTION ROLES TYPE {BOT_PREFIX}!rr cancel TO CANCEL")

        else:

            await ctx.send("Setup is used by another user")

    elif arg == "cancel":

        USER_DOING_SETUP = True

        USER_SETUP = 0

        await ctx.send("setup was cancled :)")

@client.event

async def on_message(message):

    global USER_DOING_SETUP

    global USER_SETUP

    if message.author != client.user:

        if USER_DOING_SETUP == False:

            await message.channel.send("false")

        elif USER_DOING_SETUP == True:

            if USER_SETUP == message.author.id:

                await message.channel.send("true")

            else:

                await message.channel.send("false")