env.BUILD_ID是一个常规变量，而不是shell变量.由于您使用了单引号(')，因此groovy将 not 替换为字符串中的变量，并且shell不了解${env.BUILD_ID}.您需要使用双引号"并让groovy进行替换

env.BUILD_ID is a groovy variable, not a shell variable. Since you used single-quotes (') groovy will not substitute the variables in your string and the shell doesn't know about ${env.BUILD_ID}. You need to either use double-quotes " and let groovy do the substitution

sh "echo version := 1.0.${env.BUILD_ID} >> build.sbt"

或使用外壳程序知道的变量

or use the variable the shell knows

sh 'echo version := 1.0.$BUILD_ID >> build.sbt'

并且由于您需要用双引号引起来的版本，因此需要这样的内容:

and since you need the version surrounded with doublequotes, you'd need something like this:

sh "echo version := \\\"1.0.${env.BUILD_ID}\\\" >> build.sbt"