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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                ##1.Node開發環境搭建 **node.js環境:**版本v7.6以上 **直接安裝node.js 7.6**:node.js官網地址https://nodejs.org **nvm管理多版本node.js:**可以用nvm 進行node版本進行管理 **Mac系統安裝nvm**https://github.com/creationix/nvm#manual-install **windows系統安裝nvm**https://github.com/coreybutler/nvm-windows **Ubuntu系統安裝nvm**https://github.com/creationix/nvm **npm 版本3.x以上 ** ## 2.安裝koa2 1、初始化package.json ``` ~~~ npm init ~~~ ``` 2.安裝koa庫 ``` ~~~ npm install koa ~~~ ``` 3.開發koa 的app.js ``` ~~~ const Koa = require('koa') const app = new Koa() app.use( async ( ctx ) => { ctx.body = 'hello koa2' }) app.listen(8000) console.log('[demo] start-quick is starting at port 8000') ~~~ ``` 4.運行項目 ``` ~~~ node app.js ~~~ ```
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