如何根据矩阵中的vmImage修改Pipeline发布任务的目标路径？

当然可以针对不同系统配置不同的路径，以下是几种简洁可行的实现方式：

方法1：在矩阵中定义系统专属路径变量 #

直接在matrix配置里为每个系统添加对应的目标路径变量，任务中直接引用该变量即可：

jobs:
  - job: PowerShell_Tests
    strategy:
      matrix:
        linux:
          imageName: 'ubuntu-latest'
          artifactPath: '$(Agent.BuildDirectory)/s/src/bin/Debug/net6.0/publish/package.dll'
        windows:
          imageName: 'windows-latest'
          artifactPath: '$(Agent.BuildDirectory)\\s\\src\\bin\\Debug\\net6.0\\publish\\package.dll'
        mac:
          imageName: 'macos-latest'
          artifactPath: '$(Agent.BuildDirectory)/s/src/bin/Debug/net6.0/publish/package.dll'
    pool:
      vmImage: $(imageName)

    - task: PublishPipelineArtifact@1
      inputs:
        targetPath: '$(artifactPath)'
        publishLocation: 'pipeline'

方法2：基于Agent.OS变量做条件判断 #

利用Azure DevOps内置的Agent.OS变量（Windows对应Windows_NT，Linux对应Linux，macOS对应Darwin），通过条件分支动态设置路径：

jobs:
  - job: PowerShell_Tests
    strategy:
      matrix:
        linux:
          imageName: 'ubuntu-latest'
        windows:
          imageName: 'windows-latest'
        mac:
          imageName: 'macos-latest'
    pool:
      vmImage: $(imageName)

    - task: PublishPipelineArtifact@1
      inputs:
        targetPath: ${{ if eq(variables['Agent.OS'], 'Windows_NT') }}: '$(Agent.BuildDirectory)\\s\\src\\bin\\Debug\\net6.0\\publish\\package.dll'
        targetPath: ${{ else }}: '$(Agent.BuildDirectory)/s/src/bin/Debug/net6.0/publish/package.dll'
        publishLocation: 'pipeline'

方法3：使用系统无关的路径写法 #

Azure DevOps的任务会自动处理路径分隔符，你可以统一用正斜杠/作为分隔符，Windows系统中任务会自动将其转换为反斜杠：

jobs:
  - job: PowerShell_Tests
    strategy:
      matrix:
        linux:
          imageName: 'ubuntu-latest'
        windows:
          imageName: 'windows-latest'
        mac:
          imageName: 'macos-latest'
    pool:
      vmImage: $(imageName)

    - task: PublishPipelineArtifact@1
      inputs:
        targetPath: '$(Agent.BuildDirectory)/s/src/bin/Debug/net6.0/publish/package.dll'
        publishLocation: 'pipeline'

三种方法都能解决跨系统路径不兼容的问题，其中方法3最简洁，推荐优先尝试。

内容的提问来源于stack exchange，提问作者Alex_P