我的代碼：@bot.command()async def delwarn(ctx, member: discord.Member = None, warnid = None): if member: with open('warns.json', 'r') as fcheckifthere: checkifthere = json.load(fcheckifthere) if f'{member.id}' in checkifthere.keys(): amount = len(checkifthere[f'{member.id}']) if f'{warnid}' in checkifthere[f'{member.id}']: if not amount == 1: # i want to delete the value f"{warnid}" del checkifthere[f'{member.id}'][f'{warnid}'] with open('warns.json', 'w+') as fcheckifthere: json.dump(checkifthere, fcheckifthere, sort_keys=True, indent=4)錯誤：Traceback (most recent call last): File "C:\Users\user\AppData\Local\Programs\Python\Python37\lib\site-packages\discord\ext\commands\bot.py", line 892, in invoke await ctx.command.invoke(ctx) File "C:\Users\user\AppData\Local\Programs\Python\Python37\lib\site-packages\discord\ext\commands\core.py", line 797, in invoke await injected(*ctx.args, **ctx.kwargs) File "C:\Users\user\AppData\Local\Programs\Python\Python37\lib\site-packages\discord\ext\commands\core.py", line 92, in wrapped raise CommandInvokeError(exc) from excdiscord.ext.commands.errors.CommandInvokeError: Command raised an exception: TypeError: list indices must be integers or slices, not str我想刪除特定值 f"{warnid}"，但我不知道如何刪除此錯誤。以下是 json 文件的示例：{ 305354423801217025: [ 0145324124, 2142141244 ]{
1 回答
泛舟湖上清波郎朗
TA貢獻1818條經驗 獲得超3個贊
您的錯誤在此行中，您嘗試刪除警告 ID：
del checkifthere[f'{member.id}'][f'{warnid}']
checkifthere[f'{member.id}']是一個列表，您提供的索引是一個字符串。列表索引必須是整數，所以你有一個錯誤。
刪除列表元素的最簡單方法是使用list.remove(element)：
checkifthere[str(member.id)].remove(warnid)
此外，您不需要f strings，您可以使用str()將整數和浮點數轉換為字符串。
通過一些重構，您的命令如下所示：
from discord import Member
from discord.ext import commands
from json import load, dump
@bot.command()
async def delwarn(ctx, member: Member = None, warn_id: str = None):
if not member:
return
with open('warns.json', 'r') as file:
data = load(file)
member_id = str(member.id)
if not member_id in data.keys():
return
if warn_id in data[member_id] and not len(data[member_id]) == 1:
with open('warns.json', 'w') as file:
data[member_id].remove(warn_id)
dump(data, file, sort_keys=True, indent=4)
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