用语言控制你的计算机（Windows系统)

编译环境
实现效果
程序编写
- 定义关于调用计算机应用类
- 定义关于语音识别类
- 定义识别后的输出和动作
- 总程序
引用场景

编译环境

使用已激活的windous操作系统（任何版本）（以后可能会有Mac教程），并且保证设备带有麦克风。
后安装 speech_recognition库和 os, pyautogui, pyaudio, webbrowser库，在 www.python.org 下载后，通过 cmd 安装（需先安装pip和wheel）。
如发现程序复制后显示密钥不匹配，需自行获取。

实现效果

通过麦克风运用 speech_recognition库和密钥来进行语音识别，并输出在屏幕上，同时使计算机做出相应判断（打开应用）。
在这里插入图片描述
（程序流程图）

程序编写

通过python原装IDLE编译器编写，请事先下好各库。

定义关于调用计算机应用类

通过 os库对系统中的应用的源文件进行调用，并逐个定义成为一个函数备用。

import speech_recognition as sr
import os, pyautogui, pyaudio, webbrowser
def openCalc():
    os.startfile("calc.exe")
def closeCalc():
    os.system("TASKKILL /F /IM calc.exe") 
def openNotepad():
    os.startfile("notepad.exe")
def closeNotepad():
    os.system("TASKKILL /F /IM notepad.exe")
def openMspaint():
    os.startfile("mspaint.exe")
def closeMspaint():
    os.system("TASKKILL /F /IM mspaint.exe")
def weather(city):
    webbrowser.open("https://openweathermap.org/find?q=" + city)

最后一条是在浏览器中查找所在城市的天气情况（需获得浏览器许可）。如想增加新应用则如上所示继续定义即可。

定义关于语音识别类

链接到 speech_recognition库，获取密钥（会过期，如运行报错，请获取新密钥）然后询问并等待回答。

r = sr.Recognizer()
with sr.Microphone() as source:
    userInput = ""
    while "EXIT" not in userInput :
        print("What would you like to do?")
        command = r.listen(source)
        userInput = r.recognize_bing(command, language="en-us",
                                     key="c029db88e02c4b0ebc6f8018548d6cd4")
        userInput = userInput.upper()
        print (userInput)

如要调节语音，可将定义调为中文后，将 "en-us" 改为 "zh-cn"（简体）或 "zh-tw"（繁体）。

定义识别后的输出和动作

当识别有结果后，通过刚才设定的开关引用定义来控制计算机开关识别到的应用名。

if "OPEN CALCULATOR" in userInput:
            openCalc()
            userInput = ""
        elif "CLOSE CALCULATOR" in userInput:
            closeCalc()
            userInput = ""
        elif "OPEN NOTEPAD" in userInput:
            openNotepad()
            userInput = ""
        elif "CLOSE NOTEPAD" in userInput:
            closeNotepad()
            userInput = ""
        elif "OPEN PAINT" in userInput:
            openMspaint()
            userInput = ""
        elif "CLOSE PAINT" in userInput:
            closeMspaint()
            userInput = ""
        elif "WEATHER" in userInput:
            print("What city do you want weather for?")
            try:
                command = r.listen(source)
                city = r.recognize_bing(command, language="en-us",
                                     key="c029db88e02c4b0ebc6f8018548d6cd4")[:-1]
            except sr.UnknownValueError:
                None
            print(city)
            weather(city)

运行完成后循环，直至关闭程序。

总程序

import speech_recognition as sr
import os, pyautogui, pyaudio, webbrowser
def openCalc():
    os.startfile("calc.exe")
def closeCalc():
    os.system("TASKKILL /F /IM calc.exe") 
def openNotepad():
    os.startfile("notepad.exe")
def closeNotepad():
    os.system("TASKKILL /F /IM notepad.exe")
def openMspaint():
    os.startfile("mspaint.exe")
def closeMspaint():
    os.system("TASKKILL /F /IM mspaint.exe")
def weather(city):
    webbrowser.open("https://openweathermap.org/find?q=" + city)
r = sr.Recognizer()
with sr.Microphone() as source:
    userInput = ""
    while "EXIT" not in userInput :
        print("What would you like to do?")
        command = r.listen(source)
        userInput = r.recognize_bing(command, language="en-us",
                                     key="c029db88e02c4b0ebc6f8018548d6cd4")
        userInput = userInput.upper()
        print (userInput)
        if "OPEN CALCULATOR" in userInput:
            openCalc()
            userInput = ""
        elif "CLOSE CALCULATOR" in userInput:
            closeCalc()
            userInput = ""
        elif "OPEN NOTEPAD" in userInput:
            openNotepad()
            userInput = ""
        elif "CLOSE NOTEPAD" in userInput:
            closeNotepad()
            userInput = ""
        elif "OPEN PAINT" in userInput:
            openMspaint()
            userInput = ""
        elif "CLOSE PAINT" in userInput:
            closeMspaint()
            userInput = ""
        elif "WEATHER" in userInput:
            print("What city do you want weather for?")
            try:
                command = r.listen(source)
                city = r.recognize_bing(command, language="en-us",
                                     key="c029db88e02c4b0ebc6f8018548d6cd4")[:-1]
            except sr.UnknownValueError:
                None
            print(city)
            weather(city)