用Python写一个AI语音助手，显示完整代码。

好的，以下是一个简单的Python AI语音助手的完整代码，它可以执行一些基本的任务，如回答问题、播放音乐等：

import speech_recognition as sr
import pyttsx3
import datetime
import wikipedia
import webbrowser
import os
import random
import pywhatkit as kit

# 初始化语音引擎
engine = pyttsx3.init()

# 设置语音助手的声音
voices = engine.getProperty('voices')
engine.setProperty('voice', voices[1].id)

# 定义说话的函数
def speak(audio):
    engine.say(audio)
    engine.runAndWait()

# 定义欢迎函数
def welcome():
    hour = datetime.datetime.now().hour
    if hour >= 0 and hour < 12:
        speak("早上好！")
    elif hour >= 12 and hour < 18:
        speak("下午好！")
    else:
        speak("晚上好！")

    speak("我是你的AI语音助手，有什么我可以帮你的吗？")

# 定义听函数
def takeCommand():
    r = sr.Recognizer()
    with sr.Microphone() as source:
        print("Listening...")
        r.pause_threshold = 1
        audio = r.listen(source)

    try:
        print("Recognizing...")
        query = r.recognize_google(audio, language="zh-CN")
        print(f"You said: {query}\n")

    except Exception as e:
        print(e)
        print("Say that again please...")
        return "None"
    return query

# 主函数
if __name__ == "__main__":
    welcome()

    while True:
        query = takeCommand().lower()

        # 执行命令
        if "wikipedia" in query:
            speak("Searching Wikipedia...")
            query = query.replace("wikipedia", "")
            results = wikipedia.summary(query, sentences=2)
            speak("According to Wikipedia")
            speak(results)

        elif "open youtube" in query:
            webbrowser.open("youtube.com")

        elif "open google" in query:
            webbrowser.open("google.com")

        elif "play music" in query:
            music_dir = "D:\\Music\\English"
            songs = os.listdir(music_dir)
            print(songs)
            random_song = random.choice(songs)
            os.startfile(os.path.join(music_dir, random_song))

        elif "what's the time" in query:
            strTime = datetime.datetime.now().strftime("%H:%M:%S")
            speak(f"现在的时间是{strTime}")

        elif "send message" in query:
            kit.sendwhatmsg("+919876543210", "你好", 20, 30)

        elif "bye" in query:
            speak("再见，祝你有愉快的一天！")
            exit()  

这个简单的AI语音助手可以执行一些基本任务，如搜索维基百科、打开网站、播放音乐、显示当前时间、发送WhatsApp消息等。您可以根据您的需求对其进行修改和扩展。