相关疑难解决方法(0)

我想在env:GitHub Action的部分设置一个环境变量，并使用GitHub Actions的上下文和表达式语法。我试过这个：

jobs:
  build:
    runs-on: ubuntu-latest

    env:
      MYVAR: ${{ format('{0}:{1}', ${{ env.PATH }}, ${{ env.HOME }} ) }}

    steps:
    - name: Check environment
      run: echo $MYVAR

这会导致错误消息：

### ERRORED 10:45:52Z

- Your workflow file was invalid: The pipeline is not valid. .github/workflows/main.yml (Line: 10, Col: 14): Unexpected symbol: '${{'. Located at position 19 within expression: format('{0}:{1}', ${{ env.PATH

此语法：

    env:
      MYVAR: ${{ format('{0}:{1}', {{ env.PATH }}, {{ env.HOME }} ) }}

导致错误：

### …