如何在Visual Studio Code中运行unsafe代码并解决编译报错？

I’ve dealt with this exact headache before—VS Code doesn’t have that convenient "Project > Properties" menu like the full Visual Studio, so we have to adjust the build settings manually. Here are a few straightforward ways to get your unsafe code compiling:

1. Edit your .csproj file (permanent fix) #

This is the best approach if you’ll be working with unsafe code regularly:

• Locate your project’s .csproj file (it’s in the root folder of your project) and open it in VS Code.
• Add the <AllowUnsafeBlocks>true</AllowUnsafeBlocks> line inside the <PropertyGroup> section. It should look something like this:

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net6.0</TargetFramework>
    <AllowUnsafeBlocks>true</AllowUnsafeBlocks> <!-- This enables unsafe code -->
  </PropertyGroup>
</Project>

• Save the file, and VS Code will automatically reload your project. Your unsafe code should compile without errors now.

2. Compile via .NET CLI (one-off or temporary fix) #

If you don’t want to modify your project file, you can pass the unsafe flag directly when building or running:

• To build:

dotnet build /p:AllowUnsafeBlocks=true

• To run directly:

dotnet run /p:AllowUnsafeBlocks=true

3. Update your VS Code build task (for automated builds) #

If you use VS Code’s built-in tasks to compile, tweak your tasks.json to include the unsafe flag:

• Open your .vscode/tasks.json file.
• Add "/p:AllowUnsafeBlocks=true" to the args array of your build task. Example:

{
  "version": "2.0.0",
  "tasks": [
    {
      "label": "build",
      "command": "dotnet",
      "type": "process",
      "args": [
        "build",
        "${workspaceFolder}/YourProjectName.csproj",
        "/p:AllowUnsafeBlocks=true" // Add this line
      ],
      "problemMatcher": "$msCompile"
    }
  ]
}

That’s all—any of these methods should resolve the "unsafe code" error you’re seeing.

内容的提问来源于stack exchange，提问作者Prakash Reddy Potlapadu