一些小工具安装npm i book-tool使用const { bookNumberTool } = require('book-tool') bookNumberTool(123456789) // 123,456,7893 dependents2 versions@infinitebrahmanuniverse/nolb-book@everything-registry/sub-chunk-1252@zalastax/nolb-book1.0.13 years ago1.0.03 years ago