您使用指定管道的声明式样式，因此您不得使用try / catch（用于脚本管道），但是发布部分。请参阅： https://jenkins.io/doc/book/pipeline/syntax/ ＃后期条件

Your using the declarative style of specifying your pipeline, so you must not use the try/catch (which is for Scripted Pipelines), but the post section. See: https://jenkins.io/doc/book/pipeline/syntax/#post-conditions