.NET SDK 引用程序集

# 查找 SDK 位置
dotnet --list-sdks

# 引用程序集（设计时外观）
C:/Program Files/dotnet/packs/Microsoft.NETCore.App.Ref/<version>/ref/net8.0/

项目构建输出

# 调试构建
./bin/Debug/net8.0/<AssemblyName>.dll

# 发布输出
./bin/Release/net8.0/publish/<AssemblyName>.dll

核心工作流程

1. 确定你想要理解的内容（API、类、方法）
2. 定位包含该代码的程序集
3. 使用 dnx ilspycmd -l class 查找确切的类型名称
4. 使用 -t 反编译特定类型

命令

基本反编译

# 反编译到标准输出
dnx ilspycmd MyLibrary.dll

# 反编译到输出目录
dnx ilspycmd -o ./decompiled MyLibrary.dll

# 反编译为可编译项目
dnx ilspycmd -p -o ./project MyLibrary.dll

# 使用嵌套命名空间文件夹进行反编译
dnx ilspycmd -p -o ./project --nested-directories MyLibrary.dll

目标反编译

# 反编译特定类型
dnx ilspycmd -t Namespace.ClassName MyLibrary.dll

# 使用特定 C# 版本反编译
dnx ilspycmd -lv CSharp12_0 MyLibrary.dll

# 使用依赖项的引用路径进行反编译
dnx ilspycmd -r ./dependencies MyLibrary.dll

查看 IL 代码

# 显示 IL 代码而非 C#
dnx ilspycmd -il MyLibrary.dll

# 显示特定类型的 IL
dnx ilspycmd -il -t Namespace.ClassName MyLibrary.dll

列出类型

# 列出所有类
dnx ilspycmd -l class MyLibrary.dll

# 列出接口
dnx ilspycmd -l interface MyLibrary.dll

# 列出结构体
dnx ilspycmd -l struct MyLibrary.dll

# 列出枚举
dnx ilspycmd -l enum MyLibrary.dll

# 列出委托
dnx ilspycmd -l delegate MyLibrary.dll

选项

# 显示帮助
dnx ilspycmd -h

# 禁用更新检查（适用于 CI/自动化）
dnx ilspycmd --disable-updatecheck MyLibrary.dll

# 移除死代码
dnx ilspycmd --no-dead-code MyLibrary.dll

示例：理解 JsonSerializer 的工作原理

# 在运行时中查找 System.Text.Json
dotnet --list-runtimes
# Microsoft.NETCore.App 8.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

# 列出类以查找 JsonSerializer
dnx ilspycmd -l class "C:/Program Files/dotnet/shared/Microsoft.NETCore.App/8.0.0/System.Text.Json.dll"

# 反编译 JsonSerializer
dnx ilspycmd -t System.Text.Json.JsonSerializer "C:/Program Files/dotnet/shared/Microsoft.NETCore.App/8.0.0/System.Text.Json.dll"

示例：检查 NuGet 包的实现

# 反编译 Polly 的重试逻辑
dnx ilspycmd -t Polly.Retry.RetryPolicy ~/.nuget/packages/polly/8.0.0/lib/netstandard2.0/Polly.dll

# 将整个包反编译为项目以供探索
dnx ilspycmd -p -o ./polly-src ~/.nuget/packages/polly/8.0.0/lib/netstandard2.0/Polly.dll

示例：查看 ASP.NET Core 如何处理请求

# 查找 ASP.NET Core 运行时
# C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\8.0.0\

# 反编译 Kestrel 服务器
dnx ilspycmd -l class "C:/Program Files/dotnet/shared/Microsoft.AspNetCore.App/8.0.0/Microsoft.AspNetCore.Server.Kestrel.Core.dll"

dnx ilspycmd -t Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer "C:/Program Files/dotnet/shared/Microsoft.AspNetCore.App/8.0.0/Microsoft.AspNetCore.Server.Kestrel.Core.dll"

示例：比较 C# 和 IL

# 查看 C# 源代码
dnx ilspycmd -t MyNamespace.MyClass MyLibrary.dll

# 查看相同类型的 IL 代码
dnx ilspycmd -il -t MyNamespace.MyClass MyLibrary.dll

C# 语言版本

-lv 选项的可用版本：

• CSharp1 至 CSharp12_0
• Latest, Preview

每周安装数

1

仓库

carsten-j/agent…esources

首次出现

今日

安全审计

Gen Agent Trust HubPassSocketPassSnykPass

安装于

zencoder1

amp1

cline1

openclaw1

opencode1

cursor1

.NET SDK Reference Assemblies

# Find SDK location
dotnet --list-sdks

# Reference assemblies (design-time facades)
C:/Program Files/dotnet/packs/Microsoft.NETCore.App.Ref/<version>/ref/net8.0/

Project Build Output

# Debug build
./bin/Debug/net8.0/<AssemblyName>.dll

# Published output
./bin/Release/net8.0/publish/<AssemblyName>.dll

Core workflow

1. Identify what you want to understand (API, class, method)
2. Locate the assembly containing that code
3. Use dnx ilspycmd -l class to find the exact type name
4. Decompile the specific type with -t

Commands

Basic Decompilation

# Decompile to stdout
dnx ilspycmd MyLibrary.dll

# Decompile to output directory
dnx ilspycmd -o ./decompiled MyLibrary.dll

# Decompile as compilable project
dnx ilspycmd -p -o ./project MyLibrary.dll

# Decompile with nested namespace folders
dnx ilspycmd -p -o ./project --nested-directories MyLibrary.dll

Targeted Decompilation

# Decompile a specific type
dnx ilspycmd -t Namespace.ClassName MyLibrary.dll

# Decompile with specific C# version
dnx ilspycmd -lv CSharp12_0 MyLibrary.dll

# Decompile with reference path for dependencies
dnx ilspycmd -r ./dependencies MyLibrary.dll

View IL Code

# Show IL code instead of C#
dnx ilspycmd -il MyLibrary.dll

# Show IL for specific type
dnx ilspycmd -il -t Namespace.ClassName MyLibrary.dll

List Types

# List all classes
dnx ilspycmd -l class MyLibrary.dll

# List interfaces
dnx ilspycmd -l interface MyLibrary.dll

# List structs
dnx ilspycmd -l struct MyLibrary.dll

# List enums
dnx ilspycmd -l enum MyLibrary.dll

# List delegates
dnx ilspycmd -l delegate MyLibrary.dll

Options

# Show help
dnx ilspycmd -h

# Disable update check (useful for CI/automation)
dnx ilspycmd --disable-updatecheck MyLibrary.dll

# Remove dead code
dnx ilspycmd --no-dead-code MyLibrary.dll

Example: Understand how JsonSerializer works

# Find System.Text.Json in the runtime
dotnet --list-runtimes
# Microsoft.NETCore.App 8.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

# List classes to find JsonSerializer
dnx ilspycmd -l class "C:/Program Files/dotnet/shared/Microsoft.NETCore.App/8.0.0/System.Text.Json.dll"

# Decompile JsonSerializer
dnx ilspycmd -t System.Text.Json.JsonSerializer "C:/Program Files/dotnet/shared/Microsoft.NETCore.App/8.0.0/System.Text.Json.dll"

Example: Inspect a NuGet package implementation

# Decompile Polly's retry logic
dnx ilspycmd -t Polly.Retry.RetryPolicy ~/.nuget/packages/polly/8.0.0/lib/netstandard2.0/Polly.dll

# Decompile entire package to project for exploration
dnx ilspycmd -p -o ./polly-src ~/.nuget/packages/polly/8.0.0/lib/netstandard2.0/Polly.dll

Example: See how ASP.NET Core handles requests

# Find the ASP.NET Core runtime
# C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\8.0.0\

# Decompile the Kestrel server
dnx ilspycmd -l class "C:/Program Files/dotnet/shared/Microsoft.AspNetCore.App/8.0.0/Microsoft.AspNetCore.Server.Kestrel.Core.dll"

dnx ilspycmd -t Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer "C:/Program Files/dotnet/shared/Microsoft.AspNetCore.App/8.0.0/Microsoft.AspNetCore.Server.Kestrel.Core.dll"

Example: Compare C# and IL

# View C# source
dnx ilspycmd -t MyNamespace.MyClass MyLibrary.dll

# View IL code for same type
dnx ilspycmd -il -t MyNamespace.MyClass MyLibrary.dll

C# Language Versions

Available versions for -lv option:

• CSharp1 through CSharp12_0
• Latest, Preview

Weekly Installs

1

Repository

carsten-j/agent…esources

First Seen

Today

Security Audits

Gen Agent Trust HubPassSocketPassSnykPass

Installed on

zencoder1

amp1

cline1

openclaw1

opencode1

cursor1