一、变量是字符串里列表, 如 "["100","101","102","103","108"]"
//把字符串的变量处理成列表
var myList=JSON.parse(pm.environment.get('giftTabId')) #giftTabId变量名
//设置随机取值
var randomItem = myList[Math.floor(Math.random() * myList.length)]
//把取得随机值赋值到新得变量名中
pm.environment.set("giftTabId_one",randomItem)
二、变量是列表,如["100","101","102","103","108"]
var array=pm.environment.get('evaluationId')
//设置随机取值
var randomItem = array[Math.floor(Math.random() * array.length)]
//把取得随机值赋值到新得变量名中
pm.environment.set("pingjia_id",randomItem)