使用新语法使用声明性管道，例如：

pipeline {
    agent any
    stages {
        stage('Test') {
            steps {
                sh 'echo "Fail!"; exit 1'
            }
        }
    }
    post {
        always {
            echo 'This will always run'
        }
        success {
            echo 'This will run only if successful'
        }
        failure {
            mail bcc: '', body: "<b>Example</b><br>\n\<br>Project: ${env.JOB_NAME} <br>Build Number: ${env.BUILD_NUMBER} <br> URL de build: ${env.BUILD_URL}", cc: '', charset: 'UTF-8', from: '', mimeType: 'text/html', replyTo: '', subject: "ERROR CI: Project name -> ${env.JOB_NAME}", to: "foo@foomail.com";
        }
        unstable {
            echo 'This will run only if the run was marked as unstable'
        }
        changed {
            echo 'This will run only if the state of the Pipeline has changed'
            echo 'For example, if the Pipeline was previously failing but is now successful'
        }
    }
}

您可以在詹金斯官方网站上找到更多信息：

https://jenkins.io/doc/pipeline/tour/running-multiple-
steps/

请注意，这种新语法使您的管道更具可读性，逻辑性和可维护性。