discord.py：为随机生成的每个Embed配置专属图片的问题

核心思路 #

将每个Embed的标题与对应专属图片URL绑定，可通过两种方式实现：要么预先创建好带图片的Embed实例，要么用数据结构存储配置后动态生成Embed，两种方案都能解决你的问题。

方案1：预先创建带图片的Embed列表 #

直接在定义items时给每个Embed调用set_image()方法绑定专属图片，原代码的随机逻辑基本无需改动：

import random
import discord
from discord.ext import commands

view = None   
randomitem = None
@bot.command()
async def testing(ctx):
    global randomitem
    # 预先创建带专属图片的Embed实例
    items = [
        discord.Embed(title="test1").set_image(url="https://example.com/image1.png"),
        discord.Embed(title="test2").set_image(url="https://example.com/image2.png"),
        discord.Embed(title="test3").set_image(url="https://example.com/image3.png"),
        discord.Embed(title="test4").set_image(url="https://example.com/image4.png"),
    ]
    
    randomitem = random.choice(items)
    global view
    view = discord.ui.View()
    button = discord.ui.Button(label="!test", custom_id="!test", style=discord.ButtonStyle.blurple)
    view.add_item(button)
    msg = await ctx.reply("Drawing a card...", embed=randomitem, view=view)
    
    async def button_callback(interaction):
        global randomitem
        try:
            await interaction.response.defer()
        except:
            pass
        next_embed = random.choice(items)
        while next_embed == randomitem:
            next_embed = random.choice(items)
        randomitem = next_embed
        await msg.reply("Drawing a card...", embed=next_embed, view=view)
    button.callback = button_callback

方案2：用配置结构存储，动态生成Embed（更易维护） #

如果后续需要给Embed添加更多属性（比如描述、颜色），这种方式扩展性更强：

import random
import discord
from discord.ext import commands

view = None   
randomitem = None
@bot.command()
async def testing(ctx):
    global randomitem
    # 用字典存储每个Embed的配置项：标题+专属图片URL
    embed_configs = [
        {"title": "test1", "image_url": "https://example.com/image1.png"},
        {"title": "test2", "image_url": "https://example.com/image2.png"},
        {"title": "test3", "image_url": "https://example.com/image3.png"},
        {"title": "test4", "image_url": "https://example.com/image4.png"},
    ]
    
    # 随机选择配置并生成带图片的Embed
    selected_config = random.choice(embed_configs)
    randomitem = discord.Embed(title=selected_config["title"]).set_image(url=selected_config["image_url"])
    
    global view
    view = discord.ui.View()
    button = discord.ui.Button(label="!test", custom_id="!test", style=discord.ButtonStyle.blurple)
    view.add_item(button)
    msg = await ctx.reply("Drawing a card...", embed=randomitem, view=view)
    
    async def button_callback(interaction):
        global randomitem
        try:
            await interaction.response.defer()
        except:
            pass
        # 随机选择与当前不同的配置
        next_config = random.choice(embed_configs)
        while next_config["title"] == randomitem.title:
            next_config = random.choice(embed_configs)
        # 生成新的带图片Embed
        randomitem = discord.Embed(title=next_config["title"]).set_image(url=next_config["image_url"])
        await msg.reply("Drawing a card...", embed=randomitem, view=view)
    button.callback = button_callback

注意事项 #

• 图片URL必须是Discord可直接抓取的公开链接，不能用本地文件或需要登录权限的链接
• 若要设置Embed缩略图，替换为set_thumbnail()方法即可，用法与set_image()一致

内容的提问来源于stack exchange，提问作者Anonymouspls