你把你的node和npm版本号给写出来呗

我的实现方法有点复杂，想听听你的实现方法

#贴上运行编译的结构，提示安装node-sass找不到，可是执行
$ npm install -D node-sass
后结果仍旧一样，无法运行。
`
Alecc@DESKTOP-B3EFTS2 MINGW64 /e/Vue_project/vue2.x-Cnode (master)
$ npm run dev

[email protected] dev E:\Vue_project\vue2.x-Cnode
node build/dev-server.js

正在运行开发环境

Listening at http://localhost:9090

webpack: wait until bundle finished: /
ERROR Failed to compile with 2 errors19:10:28

error

Cannot find module 'node-sass'

@ .//vue-style-loader!.//css-loader!.//vue-loader/lib/style-rewriter.js?id=data-v-1dc6ef03!.//sass-loader!./~/vue-loader/lib/selector.js?type=styles&index=0!./src/App.vue 4:14-240

error

Cannot find module 'node-sass'

@ .//vue-style-loader!.//css-loader!.//vue-loader/lib/style-rewriter.js?id=data-v-7e4e6f5a&scoped=true!.//sass-loader!./~/vue-loader/lib/selector.js?type=styles&index=0!./src/components/Menu.vue 4:14-265

webpack built 89a36f90b0e84393e0e7 in 5208ms
Hash: 89a36f90b0e84393e0e7
Version: webpack 1.14.0
Time: 5208ms
Asset Size Chunks Chunk Names
img/null.d601831.png 12.6 kB
img/timg.f172101.jpg 12.3 kB
img/error.5ec1b9b.png 16.2 kB
img/vincentSea.3a189ab.jpg 48 kB
vendor.js 3.55 kB 0 vendor.js
main.js 1.42 MB 1, 0 main
style.css 10.2 kB 1, 0 main

ERROR in Cannot find module 'node-sass'
@ .//vue-style-loader!.//css-loader!.//vue-loader/lib/style-rewriter.js?id=data-v-1dc6ef03!.//sass-loader!./~/vue-loader/lib/selector.js?type=styles&index=0!./src/App.vue 4:14-240

ERROR in Cannot find module 'node-sass'
@ .//vue-style-loader!.//css-loader!.//vue-loader/lib/style-rewriter.js?id=data-v-7e4e6f5a&scoped=true!.//sass-loader!./~/vue-loader/lib/selector.js?type=styles&index=0!./src/components/Menu.vue 4:14-265
Child html-webpack-plugin for "index.html":
Asset Size Chunks Chunk Names
index.html 1.45 MB 0
Child extract-text-webpack-plugin:

Child extract-text-webpack-plugin:

webpack: Failed to compile.

`

返回常常会黑屏

#main.js里的代码
new Vue({
el: '#app',
router,
store,
...App
})

问题：没有搞明白为什么要...App，而不是App

登录的Token是怎么设置的