优化代码 import speech_recognition as sr import pyttsx3 import pywhatkit import datetime import wikipedia import pyjokes listener = sr.Recognizer() engine = pyttsx3.init() voices = engine.getProperty('voices') engine.setProperty('voice', voices[1].id) def talk(text): engine.say(text) engine.runAndWait() def take_command(): try: with sr.Microphone() as source: print('listening...') voice = listener.listen(source) command = listener.recognize_google(voice) command = command.lower() if 'assistant' in command: command = command.replace('assistant', '') print(command) except: pass return command def run_assistant(): command = take_command() print(command) if 'play' in command: song = command.replace('play', '') talk('playing ' + song) pywhatkit.playonyt(song) elif 'time' in command: time = datetime.datetime.now().strftime('%I:%M %p') talk('Current time is ' + time) elif 'who is' in command: person = command.replace('who is', '') info = wikipedia.summary(person, 1) print(info) talk(info) elif 'joke' in command: talk(pyjokes.get_joke()) else: talk('Please say the command again.') while True: run_assistant()

以下是对代码的一些优化建议：

1. 对于异常处理，建议在异常发生时打印出错误信息，方便排查问题。例如：

except Exception as e:
    print(f"Error: {e}")

2. 在`take_command()`函数中，如果出现无法识别语音的情况，建议给用户一些提示信息，例如：

def take_command():
    try:
        with sr.Microphone() as source:
            print('listening...')
            voice = listener.listen(source)
            command = listener.recognize_google(voice)
            command = command.lower()
            if 'assistant' in command:
                command = command.replace('assistant', '')
                print(command)
    except sr.UnknownValueError:
        print("Sorry, I didn't catch that. Could you please say it again?")
        talk("Sorry, I didn't catch that. Could you please say it again?")
        command = ""
    except sr.RequestError as e:
        print(f"Could not request results from Google Speech Recognition service: {e}")
        command = ""
    return command

3. 在`run_assistant()`函数中，建议对语音指令进行更严格的判断。例如，如果用户说了“play”，但没有指定歌曲名称，那么就会出现错误。可以通过判断语音指令中是否包含必要的参数来避免这种情况。例如：

def run_assistant():
    command = take_command()
    print(command)
    if 'play' in command:
        song = command.replace('play', '').strip()  # 去掉前后空格
        if song:
            talk('playing ' + song)
            pywhatkit.playonyt(song)
        else:
            talk("Sorry, please specify a song name to play.")
    elif 'time' in command:
        time = datetime.datetime.now().strftime('%I:%M %p')
        talk('Current time is ' + time)
    elif 'who is' in command:
        person = command.replace('who is', '').strip()  # 去掉前后空格
        if person:
            info = wikipedia.summary(person, 1)
            print(info)
            talk(info)
        else:
            talk("Sorry, please specify a person's name.")
    elif 'joke' in command:
        talk(pyjokes.get_joke())
    else:
        talk('Sorry, I did not understand that. Please say the command again.')

4. 最后一个建议是，可以将一些常用的语音指令保存到一个字典中，然后在`run_assistant()`函数中进行匹配，这样可以使代码更简洁。例如：

COMMANDS = {
    'play': lambda song: pywhatkit.playonyt(song),
    'time': lambda: datetime.datetime.now().strftime('%I:%M %p'),
    'who is': lambda person: wikipedia.summary(person, 1),
    'joke': lambda: pyjokes.get_joke()
}

def run_assistant():
    command = take_command()
    print(command)
    for key in COMMANDS:
        if key in command:
            args = command.replace(key, '').strip()  # 去掉前后空格
            if args:
                talk(COMMANDS[key](args))
            else:
                talk("Sorry, please specify the command argument.")
            break
    else:
        talk('Sorry, I did not understand that. Please say the command again.')

这样就可以通过一个`COMMANDS`字典来管理所有的语音指令，代码也更加简洁。