// 创建一个新的ASP.NET Core Web API项目
dotnet new webapi -o MyApi

// 进入项目目录
cd MyApi

// 创建一个简单的控制器
public class WeatherForecastController : ControllerBase
{
  private static readonly string[] Summaries = new
  {
    "Freezing", "Bracing", "Chilly", "Cool",
    "Mild", "Warm", "Balmy", "Hot",
    "Sweltering", "Scorching"
  };

  [HttpGet]
  public IEnumerable<WeatherForecast> Get()
  {
    return Enumerable.Range(1, 5).Select(index => new WeatherForecast
    {
      Date = DateTime.Now.AddDays(index),
      TemperatureC = Random.Shared.Next(-20, 55),
      Summary = Summaries[Random.Shared.Next(Summaries.Length)]
    })
      .ToArray();
  }
}