我需要为与命令行应用程序紧密交互的应用程序编写组件。命令行应用程序询问一系列问题,执行一些计算,然后终止(我需要检测)。基本上,我想在包装类中结束这种交互。
过去有没有人取得过相似的成绩?如果是这样,你是怎么做到的?您是否注意到一个模式,或者可能在类中使用一些好的构建?干杯!
答案 0 :(得分:15)
您需要使用Process
重定向输入和输出流;处理两者都稍微复杂一些,因为你需要注意缓冲区中的东西不会丢失(导致死锁)。
您可能还想查看OutputDataReceived基于事件的回复。
答案 1 :(得分:1)
如果所有应用程序都是使用dotnet开发的,您可以使用Assembly class
答案 2 :(得分:0)
当我的回答只是指向其他地方的链接时,我会感到沮丧。我看不到C#Corner文章的链接有什么帮助。
这个问题今天已经有10年了,但应该已经澄清了。该问题未指定每个问题末尾是否有行尾(CrLf)。假设有如下所示:
string Answer;
Console.Out.WriteLine("First question: ");
Answer = Console.In.ReadLine();
Console.Out.WriteLine("Another question: ");
Answer = Console.In.ReadLine();
Console.Out.WriteLine("Final question: ");
Answer = Console.In.ReadLine();
然后可以使用以下方法对此进行响应:
class Program
{
const string FirstQuestion = "First question: ";
const string SecondQuestion = "Another question: ";
const string FinalQuestion = "Final question: ";
static AutoResetEvent Done = new AutoResetEvent(false);
static void Main(string[] args)
{
const string TheProgram = @" ... ";
Process p = new Process();
ProcessStartInfo psi = new ProcessStartInfo(TheProgram);
psi.UseShellExecute = false;
psi.CreateNoWindow = true;
psi.RedirectStandardInput = true;
psi.RedirectStandardOutput = true;
p.StartInfo = psi;
Console.WriteLine("Executing " + TheProgram);
p.Start();
DoPromptsAsync(p);
Done.WaitOne();
}
private static async Task DoPromptsAsync(Process p)
{
StreamWriter sw = p.StandardInput;
StreamReader sr = p.StandardOutput;
string Question;
Question = await sr.ReadLineAsync();
if (Question != FirstQuestion)
return;
sw.WriteLine("First answer");
Console.WriteLine(Question + "answered");
Question = await sr.ReadLineAsync();
if (Question != SecondQuestion)
return;
sw.WriteLine("Second answer");
Console.WriteLine(Question + "answered");
Question = await sr.ReadLineAsync();
if (Question != FinalQuestion)
return;
sw.WriteLine("Final answer");
Console.WriteLine(Question + "answered");
Done.Set();
}
}
以下内容在WPF应用程序中有效;我使用了双击事件进行测试,但这可以在其他WPF事件中使用。
const string TheProgram = @" ... ";
Process p = new Process();
ProcessStartInfo psi = new ProcessStartInfo(TheProgram);
psi.UseShellExecute = false;
//psi.CreateNoWindow = true;
psi.RedirectStandardInput = true;
psi.RedirectStandardOutput = true;
p.StartInfo = psi;
p.Start();
const string FirstQuestion = "First question: ";
const string SecondQuestion = "Another question: ";
const string FinalQuestion = "Final question: ";
StreamWriter sw = p.StandardInput;
StreamReader sr = p.StandardOutput;
string Question;
StringBuilder sb = new StringBuilder("Executing " + TheProgram + "\r\n");
Question = await sr.ReadLineAsync();
if (Question != FirstQuestion)
return;
sw.WriteLine("First answer");
sb.Append(Question + "answered\r\n");
Question = await sr.ReadLineAsync();
if (Question != SecondQuestion)
return;
sw.WriteLine("Second answer");
sb.Append(Question + "answered\r\n");
Question = await sr.ReadLineAsync();
if (Question != FinalQuestion)
return;
sw.WriteLine("Final answer");
sb.Append(Question + "answered\r\n");
ResultBox.Text = sb.ToString();
如果每个问题后面都没有行尾,我认为这会更加复杂。