错误是：
System.Core.dll中出现“System.InvalidOperationException”类型的异常，但未在用户代码中处理
附加信息：序列不包含任何元素
当程序到达此行时会出现此错误;
#region using directives
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Speech.Recognition;
using System.Speech.Synthesis;
using System.Windows;
using System.Diagnostics;
using JarvisAPI;
#endregion
namespace SpeechRecognition
{
class JarvisDriver
{
#region locals
/// <summary>
/// the engine
/// </summary>
SpeechRecognitionEngine speechRecognitionEngine = null;
/// <summary>
/// The speech synthesizer
/// </summary>
SpeechSynthesizer speechSynthesizer = null;
/// <summary>
/// list of predefined commands
/// </summary>
List<Word> words = new List<Word>();
/// <summary>
/// The last command
/// </summary>
string lastCommand = "";
/// <summary>
/// The name to call commands
/// </summary>
string aiName = "Jarvis";
#endregion
#region ctor
public void Start()
{
try
{
// create the engine
speechRecognitionEngine = createSpeechEngine("en-US");
// hook to event
// new EventHandler<SpeechRecognizedEventArgs>();
speechRecognitionEngine.SpeechRecognized += new EventHandler<SpeechRecognizedEventArgs> (speechRecognitionEngine_SpeechRecognized);
// load dictionary
loadGrammarAndCommands();
// use the system's default microphone
speechRecognitionEngine.SetInputToDefaultAudioDevice();
// start listening
speechRecognitionEngine.RecognizeAsync(RecognizeMode.Multiple);
//Create the speech synthesizer
speechSynthesizer = new SpeechSynthesizer();
speechSynthesizer.Rate = -5;
}
catch (Exception ex)
{
Console.WriteLine("Voice recognition failed " + ex.Message);
}
//Keeps the command prompt going until you say jarvis quit
while(lastCommand.ToLower() != "quit")
{
}
}
#endregion
#region internal functions and methods
/// <summary>
/// Creates the speech engine.
/// </summary>
/// <param name="preferredCulture">The preferred culture.</param>
/// <returns></returns>
private SpeechRecognitionEngine createSpeechEngine(string preferredCulture)
{
foreach (RecognizerInfo config in SpeechRecognitionEngine.InstalledRecognizers())
{
if (config.Culture.ToString() == preferredCulture)
{
speechRecognitionEngine = new SpeechRecognitionEngine(config);
break;
}
}
// if the desired culture is not found, then load default
if (speechRecognitionEngine == null)
{
Console.WriteLine("The desired culture is not installed on this machine, the speech-engine will continue using "
+ SpeechRecognitionEngine.InstalledRecognizers()[0].Culture.ToString() + " as the default culture.",
"Culture " + preferredCulture + " not found!");
speechRecognitionEngine = new SpeechRecognitionEngine(SpeechRecognitionEngine.InstalledRecognizers()[0]);
}
return speechRecognitionEngine;
}
/// <summary>
/// Loads the grammar and commands.
/// </summary>
private void loadGrammarAndCommands()
{
try
{
Choices texts = new Choices();
texts.Add("Jarvis");
string[] lines = File.ReadAllLines(Environment.CurrentDirectory + "\\example.txt");
foreach (string line in lines)
{
// skip commentblocks and empty lines..
if (line.StartsWith("--") || line == String.Empty) continue;
// split the line
var parts = line.Split(new char[] { '|' });
// add commandItem to the list for later lookup or execution
words.Add(new Word() { Text = parts[0], AttachedText = parts[1], IsShellCommand = (parts[2] == "true") });
// add the text to the known choices of speechengine
texts.Add(parts[0]);
}
GrammarBuilder grammarBuilder = new GrammarBuilder(texts);
grammarBuilder.Culture = new System.Globalization.CultureInfo("en-GB");
Grammar wordsList = new Grammar(grammarBuilder);
speechRecognitionEngine.LoadGrammarAsync(wordsList);
DictationGrammar dict = new DictationGrammar();
speechRecognitionEngine.LoadGrammarAsync(dict);
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// Gets the known command.
/// </summary>
/// <param name="command">The order.</param>
/// <returns></returns>
private string getKnownTextOrExecute(string command)
{
if (command.StartsWith("Jarvis"))
{
Console.WriteLine("Said Jarvis");
command = command.Replace("Jarvis ", "");
}
else
{
Console.WriteLine("Said Random Thing");
return "";
}
Console.WriteLine("Passed" + command);
var cmd = words.Where(c => c.Text == command).First();
Console.WriteLine("Said Random Thing");
if (cmd.IsShellCommand)
{
Console.WriteLine("is command");
Process proc = new Process();
proc.EnableRaisingEvents = false;
proc.StartInfo.FileName = cmd.AttachedText;
proc.Start();
lastCommand = command;
if (command.ToLower() == "i have a burn victim")
{
Console.WriteLine("Burn");
return "Fetching list of burn centers for you sir";
}
else
{
Console.WriteLine("Starting Somethign");
return "I've started : " + command;
}
}
else
{
Console.WriteLine("Set Last Command");
lastCommand = command;
return cmd.AttachedText;
}
}
#endregion
#region speechEngine events
/// <summary>
/// Handles the SpeechRecognized event of the engine control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Speech.Recognition.SpeechRecognizedEventArgs"/> instance containing the event data.</param>
void speechRecognitionEngine_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
{
string command = getKnownTextOrExecute(e.Result.Text);
if (command != "")
{
speechSynthesizer.SpeakAsync(command);
Console.WriteLine("Failed");
}
}
#endregion
}
}
顺便说一下，该计划的目的是执行演讲AI，就像钢铁侠三部曲一样。
JarvisDriver.cs
namespace SpeechRecognition
{
/// <summary>
/// represents a word
/// </summary>
public class Word
{
public Word() { }
public string Text { get; set; }
public string AttachedText { get; set; }
public bool IsShellCommand { get; set; }
}
}
Word.cs
-- format
-- [text to recognize] | [text to display or execute] | [is text a command?]
-- simple text --
one|you said "one"|false
two|you said "two"|false
three|you said "three"|false
four|you said "four"|false
five|you said "five"|false
six|you said "six"|false
seven|you said "seven"|false
eight|you said "eight"|false
nine|you said "nine"|false
ten|you said "ten"|false
Patrick|you said "Patrick"|false
do you like me|you made me I kinda have too|false
could you open calculator for me please|calc|true
-- commands --
wordpad|wordpad.exe|true
calculator|calc.exe|true
I have a burn victim|"http://en.wikipedia.org/wiki/List_of_burn_centers_in_the_United_States"| true
example.txt中
.data("ui-autocomplete")._renderItem = function( ul, item ) {
return $( "<li class='submitmore' ></li>" )
.data( "item.autocomplete", item )
.append('<p class="searchdata">'+item.value+'<div class="clear"></div>');
};
$(document).on("p.searchdata").click(function() {
asd($(this).closest("li.submitmore").data("item.autocomplete"));
}