如何让Discord机器人执行自身创建的斜杠命令

要实现机器人在on_ready中触发自身的rules斜杠命令，最简洁的方式是提取命令的核心逻辑为独立函数，避免构造复杂的Interaction对象（直接调用斜杠命令函数需要传入合法的Interaction，实现成本高且易出错）。

具体修改步骤 #

1. 把rules命令里发送规则嵌入的逻辑抽成单独的异步函数，实现逻辑复用，既可以在命令中调用，也能在on_ready中直接触发。
2. 在on_ready的频道清理逻辑完成后，调用这个独立函数发送规则。
3. 原rules命令只需保留权限检查逻辑，再调用抽离后的发送函数即可。

修改后的完整代码 #

import discord
from discord import app_commands 

class aclient(discord.Client):
    def __init__(self):
        super().__init__(intents = discord.Intents.all())
        self.synced = False # 避免重复同步命令

    async def on_ready(self):
        await self.wait_until_ready()
        if not self.synced:
            await tree.sync(guild = discord.Object(id=1204091669943816213)) # 服务器专属命令同步
            self.synced = True
        
        channel_id = 1204102053064871946  # 目标频道ID
        channel = self.get_channel(channel_id)
        if channel:
            await channel.purge(limit=1)  # 删除频道内1条消息
            # 调用抽离的规则发送函数
            await send_rules_embed(channel, channel.guild)
        print(f"We have logged in as {self.user}.")

class button_view(discord.ui.View):
    def __init__(self) -> None:
        super().__init__(timeout=None)
    
    @discord.ui.button(label = "Verify", style = discord.ButtonStyle.green, custom_id = "role_button")
    async def verify(self, interaction: discord.Interaction, button: discord.ui.Button):
        client.role = interaction.guild.get_role(1204110443258318928)
        if client.role not in interaction.user.roles:
            await interaction.user.add_roles(client.role)
            await interaction.response.send_message(f"I have given you {client.role.mention}!")

            with open("verified.txt", "w") as file:
                file.write(str(interaction.user.id) + "\n")

        else: 
            await interaction.response.send_message(f"You already have {client.role.mention}!")

# 抽离的规则发送逻辑
async def send_rules_embed(channel, guild):
    embed2=discord.Embed(title="📜 Rules 📜", description=''' 
    **§1 -** __Be respectful__: Treat others with kindness and respect. Harassment, hate speech, or any form of discrimination will not be tolerated.\n
    **§2 -** __Keep discussions civil__: Debates and discussions are encouraged, but avoid personal attacks or insults. Disagreements should be handled respectfully.\n
    **§3 -** __No spam or self-promotion__: Avoid flooding the chat with unnecessary messages or advertisements.\n
    **§4 -** __Use appropriate content__: Keep conversations and content appropriate for all ages. NSFW (Not Safe For Work) content is strictly prohibited.\n
    **§5 -** __No trolling__: Do not engage in trolling, flaming, or intentionally disrupting the server environment. This includes excessive use of emojis or CAPS LOCK.\n
    **§6 -** __Follow Discord's Terms of Service and Community Guidelines__: Make sure all activities within the server comply with Discord's terms and guidelines.\n
    **§7 -** __Respect server staff__: Follow the instructions of moderators and administrators. Disrespect towards server staff will not be tolerated.\n
    **§8 -** __Use channels appropriately__: Post content in relevant channels and avoid off-topic discussions. If unsure, ask a staff member for guidance.\n
    **§9 -** __Report violations__: If you encounter any violations of the rules or Discord's guidelines, report them to the server staff.
    ''', color=discord.Colour.blue())
    embed2.set_thumbnail(url="https://upload.wikimedia.org/wikipedia/commons/thumb/1/10/Userbox_creeper.svg/800px-Userbox_creeper.svg.png")
    await channel.send(embed=embed2, view = button_view())

client = aclient()
tree = app_commands.CommandTree(client)

@tree.command(guild = discord.Object(id=1204091669943816213), name='rules', description='Rules')
async def rules(interaction: discord.Interaction):
    role_id = 1205862534280642640 
    role = discord.utils.get(interaction.guild.roles, id=role_id)
    if role in interaction.user.roles:
        # 调用抽离的规则发送函数
        await send_rules_embed(interaction.channel, interaction.guild)
        await interaction.response.send_message("规则已发送！", ephemeral=True)
    else:
        await interaction.response.send_message("你没有执行此命令的权限。")

client.run('Token')

关键说明 #

• 抽离逻辑后代码复用性更强，无需重复编写发送规则的代码。
• 避免了手动构造Interaction对象的复杂操作（Discord的Interaction包含大量上下文信息，手动构造极易出错）。
• 如果需要让机器人在on_ready触发时也遵守权限限制，可以在调用send_rules_embed前，检查机器人自身是否拥有目标角色。

内容的提问来源于stack exchange，提问作者DZultra