尝试使用ConversationHandler通过MessageHandler获取用户输入

pip install python-telegram-bot

from telegram import Update
from telegram.ext import Updater, CommandHandler, MessageHandler, Filters, ConversationHandler, CallbackContext

# 定义对话状态
ASK_NAME, ASK_AGE = range(2)

def start(update: Update, context: CallbackContext) -> int:
    update.message.reply_text("Hi! What's your name?")
    return ASK_NAME

def ask_name(update: Update, context: CallbackContext) -> int:
    user_name = update.message.text
    context.user_data['name'] = user_name
    update.message.reply_text(f"Nice to meet you, {user_name}! How old are you?")
    return ASK_AGE

def ask_age(update: Update, context: CallbackContext) -> int:
    user_age = update.message.text
    if not user_age.isdigit():
        update.message.reply_text("Please enter a valid age.")
        return ASK_AGE

    context.user_data['age'] = int(user_age)
    update.message.reply_text(f"Great! So your name is {context.user_data['name']} and you are {user_age} years old.")
    return ConversationHandler.END

def cancel(update: Update, context: CallbackContext) -> int:
    update.message.reply_text("Conversation cancelled.")
    return ConversationHandler.END

def main() -> None:
    # 替换为你的Bot Token
    updater = Updater("YOUR_BOT_TOKEN")

    dispatcher = updater.dispatcher

    # 定义对话处理器
    conv_handler = ConversationHandler(
        entry_points=[CommandHandler('start', start)],
        states={
            ASK_NAME: [MessageHandler(Filters.text & ~Filters.command, ask_name)],
            ASK_AGE: [MessageHandler(Filters.text & ~Filters.command, ask_age)],
        },
        fallbacks=[CommandHandler('cancel', cancel)],
    )

    dispatcher.add_handler(conv_handler)

    # 启动Bot
    updater.start_polling()
    updater.idle()

if __name__ == '__main__':
    main()