函数计算入门-HelloWorld应用开发，最后的URL访问出错。

{ "errorMessage": "re is not defined", "errorType": "ReferenceError", "stackTrace": [ "ReferenceError: re is not defined", "at (/code/index.js:1:63)", "at Module._compile (internal/modules/cjs/loader.js:701:30)", "at Module._extensions..js (internal/modules/cjs/loader.js:712:10)", "at Module.load (internal/modules/cjs/loader.js:600:32)", "at tryModuleLoad (internal/modules/cjs/loader.js:539:12)", "at Module._load (internal/modules/cjs/loader.js:531:3)", "at Module.require (internal/modules/cjs/loader.js:637:17)", "at require (internal/modules/cjs/helpers.js:22:18)" ] }