设置

build/build.js

 // https://github.com/shelljs/shelljs
 require('shelljs/global')
-// env.NODE_ENV = 'production'
+env.NODE_ENV = 'production'
 
 var path = require('path')
 var config = require('../config')

config/index.js

@@ -4,8 +4,7 @@ var path = require('path')
 module.exports = {
     build: {
         env: {
-            // NODE_ENV: '"production"'
-            NODE_ENV: '"' + process.env.NODE_ENV + '"'
+            NODE_ENV: '"production"'
         },
         index: path.resolve(__dirname, '../dist/index.html'),
         assetsRoot: path.resolve(__dirname, '../dist'),