bg：.NET/C#真的是越来越凉了。用的是.net9，创建完自带一个天气预报api拿来测试就行

1、在Controllers中弄多几个，并写上注释

/// <summary>
/// Post注释
/// </summary>
/// <returns></returns>
[HttpPost]
public IEnumerable<WeatherForecast> Post()
{return Enumerable.Range(1, 5).Select(index => new WeatherForecast{Date = DateOnly.FromDateTime(DateTime.Now.AddDays(index)),TemperatureC = Random.Shared.Next(-20, 55),Summary = Summaries[Random.Shared.Next(Summaries.Length)]}).ToArray();
}/// <summary>
/// Put注释
/// </summary>
/// <returns></returns>
[HttpPut]
public IEnumerable<WeatherForecast> Put()
{return Enumerable.Range(1, 5).Select(index => new WeatherForecast{Date = DateOnly.FromDateTime(DateTime.Now.AddDays(index)),TemperatureC = Random.Shared.Next(-20, 55),Summary = Summaries[Random.Shared.Next(Summaries.Length)]}).ToArray();
}

2、在属性中，将文档文件打上勾

3、配置swagger中加上

#region 配置swagger服务
{builder.Services.AddEndpointsApiExplorer();builder.Services.AddSwaggerGen(options =>{string basePath = AppContext.BaseDirectory;string xmlPath = Path.Combine(basePath, "MvcWeb.xml");  // 项目名称.xmloptions.IncludeXmlComments(xmlPath);    // 加上这个才会在swagger中增加注释});
}
#endregion

运行效果：