feat: add 客户端

PetWashControl/Services/LogService.cs

@@ -0,0 +1,50 @@
+using System.Diagnostics;
+using System.IO;
+
+namespace PetWashControl.Services;
+
+public class LogService
+{
+    private readonly string _logFilePath;
+
+    public LogService()
+    {
+        var logDirectory = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Logs");
+        Directory.CreateDirectory(logDirectory);
+        _logFilePath = Path.Combine(logDirectory, $"log_{DateTime.Now:yyyyMMdd}.txt");
+    }
+
+    public void LogInfo(string message)
+    {
+        Log("INFO", message);
+    }
+
+    public void LogWarning(string message)
+    {
+        Log("WARN", message);
+    }
+
+    public void LogError(string message, Exception? ex = null)
+    {
+        var fullMessage = ex != null ? $"{message}\n{ex}" : message;
+        Log("ERROR", fullMessage);
+    }
+
+    private void Log(string level, string message)
+    {
+        var logMessage = $"[{DateTime.Now:yyyy-MM-dd HH:mm:ss}] [{level}] {message}";
+        
+        // 输出到调试窗口
+        Debug.WriteLine(logMessage);
+        
+        // 写入文件
+        try
+        {
+            File.AppendAllText(_logFilePath, logMessage + Environment.NewLine);
+        }
+        catch
+        {
+            // 忽略日志写入失败
+        }
+    }
+}