.NET 运行时环境

using System;
 
class Program
{
    static void Main()
    {
        Console.WriteLine("Hello, .NET!");
    }
}

open System
 
[<EntryPoint>]
let main argv =
    printfn "Hello, .NET!"
    0

Imports System
 
Module Program
    Sub Main()
        Console.WriteLine("Hello, .NET!")
    End Sub
End Module

# 安装包
dotnet add package Newtonsoft.Json
 
# 恢复包
dotnet restore
 
# 发布包
dotnet pack

dotnet publish -c Release -r win-x64 --self-contained true

dotnet publish -c Release

FROM mcr.microsoft.com/dotnet/aspnet:7.0 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443
 
FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build
WORKDIR /src
COPY ["MyApp.csproj", "./"]
RUN dotnet restore "./MyApp.csproj"
COPY . .
WORKDIR "/src/."
RUN dotnet build "MyApp.csproj" -c Release -o /app/build
 
FROM build AS publish
RUN dotnet publish "MyApp.csproj" -c Release -o /app/publish
 
FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "MyApp.dll"]

public async Task<string> GetDataAsync()
{
    using var client = new HttpClient();
    return await client.GetStringAsync("https://api.example.com/data");
}

// appsettings.json
{
  "ConnectionStrings": {
    "DefaultConnection": "Server=localhost;Database=MyDb;"
  },
  "Logging": {
    "LogLevel": {
      "Default": "Information"
    }
  }
}

using Microsoft.Extensions.Logging;
 
public class MyService
{
    private readonly ILogger<MyService> _logger;
 
    public MyService(ILogger<MyService> logger)
    {
        _logger = logger;
    }
 
    public void DoWork()
    {
        _logger.LogInformation("开始执行工作");
        // 业务逻辑
        _logger.LogInformation("工作完成");
    }
}