您可以将变量写入文件，然后在groovy脚本中读取文件以获取变量。

# Python script
with open('vars.txt') as fp:
  fp.write('key=val1')

# Jenkinsfile
stage() {
   steps {
      script {
         def vars = readProperties(file: 'vars.txt')
         echo vars['key']
      }
   }
}