微信文件撤回时间延长

import time

class Message:
    def __init__(self, content, timestamp):
        self.content = content
        self.timestamp = timestamp

class WeChatSimulator:
    def __init__(self):
        self.messages = []

    def send_message(self, content):
        msg = Message(content, time.time())
        self.messages.append(msg)
        print(f"Message sent: {content}")

    def recall_message(self, content):
        current_time = time.time()
        for msg in self.messages:
            if msg.content == content and (current_time - msg.timestamp) < 2:  # 假设撤回时间为2秒
                self.messages.remove(msg)
                print(f"Message recalled: {content}")
                return True
        print("Message cannot be recalled.")
        return False

# 使用示例
wechat = WeChatSimulator()
wechat.send_message("Hello, World!")
time.sleep(1)
wechat.recall_message("Hello, World!")  # 应该成功撤回
time.sleep(2)
wechat.recall_message("Hello, World!")  # 应该无法撤回