Merge branch 'master' into 'main'

pipeline syntax modify2

See merge request !15

Jenkinsfile

@@ -33,7 +33,7 @@ pipeline {
             }
             always{
                 echo 'done maven build'
-                slackSend (channel: '#devops', color: '#FFFF00'),
+                slackSend (channel: '#devops', color: '#FFFF00',
                     message: "${env.userId}" STARTED:Job '${env.JOB_NAME}' [$(env.BUILD_NUMBER)](${env.BUILD_URL})
             }
         }