如何在IF语句中使用Jenkins局部定义变量？

pipeline {
    agent any
    stages {
        stage('Example') {
            steps {
                script {
                    def myVariable = 'Hello, Jenkins!'
                    if (myVariable == 'Hello, Jenkins!') {
                        echo "Variable value is correct"
                    } else {
                        echo "Variable value is incorrect"
                    }
                }
            }
        }
    }
}