var jsonData =JSON.parse(responseBody);//获取body中返回的所有参数
postman.setGlobalVariable("token",jsonData.data.token);//把返回参数中的keys设置为环境变量
https://juejin.im/post/5ec79291e51d4578761ff36c
https://juejin.im/post/5c21cf2b5188251ae76024c3
https://blog.csdn.net/ruanhao1203/article/details/79095629
原文：https://www.cnblogs.com/tomtellyou/p/13073152.html