Discord.py 如何制作将运行具有多个随机响应的命令的按钮

Question

我正在尝试制作一个Python不和谐机器人。我有一个命令，最终会给出一个随机回复，我发现的代码非常适合它，但我想添加一个按钮，该按钮会与回复一起出现，可以单击该按钮来再次运行该命令，而不必不断地重新输入命令。另外，如果可能的话，我希望它只能由特定角色访问

@bot.command()
async def button(ctx):
    items = [
    discord.Embed(title = "this is for a test"),
    discord.Embed(title = "this is the second test"),
    discord.Embed(title = "this is the third test"),
    discord.Embed(title = "this is the fourth test"),
    discord.Embed(title = "this is the fifth test"),
    discord.Embed(title = "this is the sixth test"),
    discord.Embed(title = "this is the seventh test"),
    discord.Embed(title = "this is the eighth test")]
    randomitem = random.choice(items)
    await ctx.reply(embed=randomitem) # embed= - for send discord.Embed]
    view = discord.ui.View()
    button = discord.ui.Button(label="Click me")
    view.add_item(button)
    await ctx.send(view=view)

Answer 1

不是最有效的方法，但这样做可以：

randomitem = None
@bot.command()
async def button(ctx):
    global randomitem
    items = [
        discord.Embed(title="this is for a test"),
        discord.Embed(title="this is the second test"),
        discord.Embed(title="this is the third test"),
        discord.Embed(title="this is the fourth test"),
        discord.Embed(title="this is the fifth test"),
        discord.Embed(title="this is the sixth test"),
        discord.Embed(title="this is the seventh test"),
        discord.Embed(title="this is the eighth test")
    ]
    
    randomitem = random.choice(items)
    msg = await ctx.reply(embed=randomitem)
    
    async def change_embed(interaction):
        global randomitem
        next_embed = random.choice(items)
        while next_embed == randomitem:
            next_embed = random.choice(items)
        randomitem = next_embed
        await msg.edit(embed=next_embed)
        
    view = discord.ui.View()
    button = discord.ui.Button(label="Click me", custom_id="click_me")
    button.callback = change_embed
    view.add_item(button)
    
    await ctx.send(view=view)

工作原理：

• randomitem 作为全局变量（默认设置为 None）

• 功能

  change_embed

  用于更改按钮单击时的嵌入

• button.callback

  检查按钮点击

• 回调调用函数

• while loop

  检查随机项目是否与下一个项目相同

• msg.edit

  编辑嵌入

注意：点击会在discord中返回“交互失败”错误，因为你没有响应交互