MyAvaloniaDemo/Services/DataService.cs

using Microsoft.Extensions.Logging;
using System;
using System.Threading.Tasks;

namespace MyAvaloniaApp.Services;

/// <summary>
/// 数据服务实现
/// </summary>
public class DataService : IDataService
{
    private readonly ILogger<DataService>? _logger;
    private string _data = "示例数据";

    public DataService(ILogger<DataService>? logger = null)
    {
        _logger = logger;
        _logger?.LogInformation("DataService 已创建");
    }

    public string GetData()
    {
        _logger?.LogDebug("获取数据: {Data}", _data);
        return _data;
    }

    public async Task<string> GetDataAsync()
    {
        _logger?.LogDebug("异步获取数据");
        
        // 模拟异步操作
        await Task.Delay(100);
        
        return _data;
    }

    public void SaveData(string data)
    {
        _data = data;
        _logger?.LogInformation("数据已保存: {Data}", data);
    }
}