import itchat
# 登陆
itchat.auto_login()  # 可设置hotReload = True
# 运行并保持在线状态
itchat.run()

itchat.send('Hello', toUserName='filehelper')

###################### 完整代码##############################
# 加载库
from itchat.content import *
import requests
import json
import itchat
itchat.auto_login(hotReload = True)
# 调用图灵机器人的api，采用爬虫的原理，根据聊天消息返回回复内容
def tuling(info):
  appkey = "e5ccc9c7c8834ec3b08940e290ff1559"
  url = "http://www.tuling123.com/openapi/api"%(appkey,info)
  req = requests.get(url)
  content = req.text
  data = json.loads(content)
  answer = data['text']
  return answer
# 对于群聊信息，定义获取想要针对某个群进行机器人回复的群ID函数
def group_id(name):
  df = itchat.search_chatrooms(name=name)
  return df[0]['UserName']
# 注册文本消息，绑定到text_reply处理函数
# text_reply msg_files可以处理好友之间的聊天回复
@itchat.msg_register([TEXT,MAP,CARD,NOTE,SHARING])
def text_reply(msg):
  itchat.send('%s' % tuling(msg['Text']),msg['FromUserName'])
@itchat.msg_register([PICTURE, RECORDING, ATTACHMENT, VIDEO])
def download_files(msg):
  msg['Text'](msg['FileName'])
  return '@%s@%s' % ({'Picture': 'img', 'Video': 'vid'}.get(msg['Type'], 'fil'), msg['FileName'])
# 现在微信加了好多群，并不想对所有的群都进行设置微信机器人，只针对想要设置的群进行微信机器人，可进行如下设置
@itchat.msg_register(TEXT, isGroupChat=True)
def group_text_reply(msg):
  # 当然如果只想针对@你的人才回复，可以设置if msg['isAt']: 
  item = group_id(u'想要设置的群的名称') # 根据自己的需求设置
  if msg['ToUserName'] == item:
    itchat.send(u'%s' % tuling(msg['Text']), item)
itchat.run()