你以为你撤回了消息我就看不到?（撤回也没用我已经看到了）

在wechat上，对方撤回了消息是不是心痒痒呢？是不是想知道对面撤回的消息是什么？

前提条件：

• python3
• itchat（没有的可以直接 pip install itchat）

import re
import os
import time
import itchat
import platform
from itchat.content import TEXT
from itchat.content import *


msg_info = {}
face_package = None


# 处理接收到的信息
@itchat.msg_register([TEXT, PICTURE, FRIENDS, CARD, MAP, SHARING, RECORDING, ATTACHMENT, VIDEO], isFriendChat=True, isMpChat=True)
def handleRMsg(msg):
	global face_package
	# 接收消息的时间
	msg_time_receive = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
	# 发信人
	try:
		msg_from = itchat.search_friends(userName=msg['FromUserName'])['NickName']
	except:
		msg_from = 'WeChat Official Accounts'
	# 发信时间
	msg_time_send = msg['CreateTime']
	# 信息ID
	msg_id = msg['MsgId']
	msg_content = None
	msg_link = None
	# 文本或者好友推荐
	if msg['Type'] == 'Text' or msg['Type'] == 'Friends':
		msg_content = msg['Text']
		print('[Text/Friends]: %s' % msg_content)
	# 附件/视频/图片/语音
	elif msg['Type'] == 'Attachment' or msg['Type'] == "Video" or msg['Type'] == 'Picture' or msg['Type'] == 'Recording':
		msg_content = msg['FileName']
		msg['Text'](str(msg_content))
		print('[Attachment/Video/Picture/Recording]: %s' % msg_content)
	# 推荐名片
	elif msg['Type'] == 'Card':
		msg_content = msg['RecommendInfo']['NickName'] + '的推荐名片，'
		if msg['RecommendInfo']['Sex'] == 1:
			msg_content += '性别男。'
		else:
			msg_content += '性别女。'
		print('[Card]: %s' % msg_content)
	# 位置信息
	elif msg['Type'] == 'Map':
		x, y, location = re.search("<location x=\"(.*?)\" y=\"(.*?)\".*label=\"(.*?)\".*", msg['OriContent']).group(1, 2, 3)
		if location is None:
			msg_content = r"纬度:" + x.__str__() + ", 经度:" + y.__str__()
		else:
			msg_content = r"" + location
		print('[Map]: %s' % msg_content)
	# 分析的音乐/文章
	elif msg['Type'] == 'Sharing':
		msg_content = msg['Text']
		msg_link = msg['Url']
		print('[Sharing]: %s' % msg_content)
	msg_info.update(
			{
				msg_id: {
					"msg_from": msg_from,
					"msg_time_send": msg_time_send,
					"msg_time_receive": msg_time_receive,
					"msg_type": msg["Type"],
					"msg_content": msg_content,
					"msg_link": msg_link
				}
			}
		)
	face_package = msg_content


# 监听是否有消息撤回
@itchat.msg_register(NOTE, isFriendChat=True, isGroupChat=True, isMpChat=True)
def monitor(msg):
	if '撤回了一条消息' in msg['Content']:
		recall_msg_id = re.search("\<msgid\>(.*?)\<\/msgid\>", msg['Content']).group(1)
		recall_msg = msg_info.get(recall_msg_id)
		print('[Recall]: %s' % recall_msg)
		# 表情包
		if len(recall_msg_id) < 11:
			itchat.send_file(face_package, toUserName='filehelper')
		else:
			msg_prime = '---' + recall_msg.get('msg_from') + '撤回了一条消息---\n' \
						'消息类型：' + recall_msg.get('msg_type') + '\n' \
						'时间：' + recall_msg.get('msg_time_receive') + '\n' \
						'内容：' + recall_msg.get('msg_content')
			if recall_msg['msg_type'] == 'Sharing':
				msg_prime += '\n链接：' + recall_msg.get('msg_link')
			itchat.send_msg(msg_prime, toUserName='filehelper')
			if recall_msg['msg_type'] == 'Attachment' or recall_msg['msg_type'] == "Video" or recall_msg['msg_type'] == 'Picture' or recall_msg['msg_type'] == 'Recording':
				file = '@fil@%s' % (recall_msg['msg_content'])
				itchat.send(msg=file, toUserName='filehelper')
				os.remove(recall_msg['msg_content'])
			msg_info.pop(recall_msg_id)


if __name__ == '__main__':
	if platform.platform()[:7] == 'Windows':
		itchat.auto_login(enableCmdQR=False, hotReload=True)
	else:
		itchat.auto_login(enableCmdQR=True, hotReload=True)
	itchat.run()

操作：要在一台计算机一直运行，当对方撤回消息后，会将消息发到文件传输助手中，该原理只是将对方说的缓存下来，然后对方撤回消息再直接发到文件传输助手。