dev 运行不报错
build 打包报错
vue-demi-92bac2ad.js:1 Uncaught ReferenceError: Cannot access 'a' before initialization
at vue-demi-92bac2ad.js:1:101
at V (vue-demi-92bac2ad.js:1:402)
at @vue-office-636c0905.js:1:885
at @vue-office-636c0905.js:1:895
at @vue-office-636c0905.js:96:21323