c# - 如何在C＃中使用线程读取stdout和stderr

class Console(tk.Frame): def __init__(self,parent=None): tk.Frame.__init__(self, parent) self.parent = parent self.createWidgets() # get the path to the console.py file assuming it is in the same folder consolePath = os.path.join(os.path.dirname(__file__),"console.py") # open the console.py file (replace the path to python with the correct one for your system) # e.g. it might be "C:\\Python35\\python" self.p = subprocess.Popen(["python",consolePath], stdout=subprocess.PIPE, stdin=subprocess.PIPE, stderr=subprocess.PIPE) # make queues for keeping stdout and stderr whilst it is transferred between threads self.outQueue = queue.Queue() self.errQueue = queue.Queue() # keep track of where any line that is submitted starts self.line_start = 0 # make the enter key call the self.enter function self.ttyText.bind("<Return>",self.enter) # a daemon to keep track of the threads so they can stop running self.alive = True # start the functions that get stdout and stderr in separate threads Thread(target=self.readFromProccessOut).start() Thread(target=self.readFromProccessErr).start() # start the write loop in the main thread self.writeLoop() def destroy(self): "This is the function that is automatically called when the widget is destroyed." self.alive=False # write exit() to the console in order to stop it running self.p.stdin.write("exit()\n".encode()) self.p.stdin.flush() # call the destroy methods to properly destroy widgets self.ttyText.destroy() tk.Frame.destroy(self) def enter(self,e): "The <Return> key press handler" string = self.ttyText.get(1.0, tk.END)[self.line_start:] self.line_start+=len(string) self.p.stdin.write(string.encode()) self.p.stdin.flush() def readFromProccessOut(self): "To be executed in a separate thread to make read non-blocking" while self.alive: data = self.p.stdout.raw.read(1024).decode() self.outQueue.put(data) def readFromProccessErr(self): "To be executed in a separate thread to make read non-blocking" while self.alive: data = self.p.stderr.raw.read(1024).decode() self.errQueue.put(data) def writeLoop(self): "Used to write data from stdout and stderr to the Text widget" # if there is anything to write from stdout or stderr, then write it if not self.errQueue.empty(): self.write(self.errQueue.get()) if not self.outQueue.empty(): self.write(self.outQueue.get()) # run this method again after 10ms if self.alive: self.after(10,self.writeLoop) def write(self,string): self.ttyText.insert(tk.END, string) self.ttyText.see(tk.END) self.line_start+=len(string) def createWidgets(self): self.ttyText = tk.Text(self, wrap=tk.WORD) self.ttyText.pack(fill=tk.BOTH,expand=True)

public partial class MainWindow : Window { Process console; Queue<string> out_queue; Queue<string> err_queue; int line_start; bool daemon_isAlive; public MainWindow() { InitializeComponent(); string console_path = Environment.CurrentDirectory + @"\py\console.py"; ProcessStartInfo console_info = new ProcessStartInfo("python", console_path); console_info.RedirectStandardOutput = true; console_info.RedirectStandardInput = true; console_info.RedirectStandardError = true; console = new Process(); console.StartInfo = console_info; console.StartInfo.CreateNoWindow = true; console.StartInfo.UseShellExecute = false; console.Start(); out_queue = new Queue<string>(); err_queue = new Queue<string>(); daemon_isAlive = true; Thread stdout_handler = new Thread(new ThreadStart(ReadFromProcessOut)); Thread stderr_handler = new Thread(new ThreadStart(ReadFromProcessErr)); stdout_handler.IsBackground = true; stderr_handler.IsBackground = true; stdout_handler.Start(); stderr_handler.Start(); WriteLoop(); } private void ReadFromProcessOut() { while (daemon_isAlive) { string stdout = console.StandardOutput.ReadToEnd(); out_queue.Enqueue(stdout); } } private void ReadFromProcessErr() { while (daemon_isAlive) { string stderr = console.StandardError.ReadToEnd(); err_queue.Enqueue(stderr); } } private void WriteLoop() { if (err_queue.Count != 0) { Write(err_queue.Dequeue()); } if (out_queue.Count != 0) { Write(out_queue.Dequeue()); } if (daemon_isAlive) { // OK System.Timers.Timer timer = new System.Timers.Timer(); timer.Elapsed += (sender, args) => WriteLoop(); timer.Interval = 10; timer.Enabled = true; } } private void Write(string str) { if (str == null) return; Dispatcher.Invoke(DispatcherPriority.Normal, new Action(delegate { tb_output.Text = tb_output.Text.Insert(tb_output.Text.Length, str + Environment.NewLine); })); } private void tb_input_KeyDown(object sender, KeyEventArgs e) { if (e.Key == Key.Enter) { string str = tb_input.Text; console.StandardInput.Write(str); console.StandardInput.Flush(); tb_input.Clear(); } } private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e) { daemon_isAlive = false; console.StandardInput.Write("exit()\n"); console.StandardInput.Flush(); } }