命令模式:如何将参数传递给命令？

// 封装命令参数及执行函数
public abstract class Command
{
    private string parameter;

    protected Command(string parameter)
    {
        this.parameter = parameter;
    }

    public virtual void Execute()
    {
        Console.WriteLine($"{parameter} has been executed.");
    }
}

// 具体命令类，封装天气查询逻辑
public class WeatherForecastCommand : Command
{
    private string location;

    public WeatherForecastCommand(string location) : base(location)
    {

    }

    public override void Execute()
    {
        HttpClient client = new HttpClient();
        string forecastUrl = $"http://api.weather.gov/forecast?q={location}&units=imperial&appid=a1fb00b42965ac9889f570ae41a5ae50";
        var response = client.GetAsync(forecastUrl).Result;
        // ...
    }
}

// 请求天气信息的调用者
public static class WeatherService
{
    public static void GetWeatherForecast(string location)
    {
        Command command = new WeatherForecastCommand(location);
        command.Execute();
    }
}

// 将参数传递给命令（示例：调用天气服务）
WeatherService.GetWeatherForecast("New York")