变量的字符串插值

Question

我有一类静态变量

class Globals {
        static String SLAVE_1_LABEL = 'ruby'
        static String SLAVE_2_LABEL = 'python'
        static String SLAVE_3_LABEL = 'java'
        .....
 }

这样做的正确方法是什么：

labelString = Globals.SLAVE_${i}_LABEL ?: "mesos-${Globals.SLAVE_${i}_LABEL}",

Script1.groovy: 145: expecting ')', found '_LABEL' @ line 145, column 53.
    obals.SLAVE_${i}_LABEL ?

Answer 1

Var需要双引号

 Globals."SLAVE_${i}_LABEL"