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前提是已经安装了node.js.
首先得新建一个Vue项目：(这里只是一个大概的方法)
1.打开命令窗口，全局安装脚手架构建工具：
npm install -g vue-cli 回车
2.命令行中运行命令 vue init webpack vantappdemo后回车（初始化一个完整版的项目）
。解释一下这个命令，这个命令的意思是初始化一个项目。最后的是项目名称自己根据项目内容来起
vue init webpack vantappdemo
成功初始化后：
像上面这个样子就是一个建好的Vue项目了。
接下来就是在vue-cli脚手架中的vant部分了。
1.首先是安装Vant:
在命令行输入命令：npm install vant --save
2.引入组件：
推荐的方法是使用 babel-plugin-import
babel-plugin-import 是一款 babel 插件，它会在编译过程中将 import 的写法自动转换为按需引入的方式
# 安装 babel-plugin-import 插件 npm i babel-plugin-import -D
然后要在.babelrc中配置plugins中插入下面的组件：
// 在 .babelrc 或 babel-loader 中添加插件配置 // 注意：webpack 1 无需设置 libraryDirectory {
"plugins": [ ["import", { "libraryName": "vant", "libraryDirectory": "es",
"style": true }] ] }
首先打开新建的项目我们会看到原本的.babelrc文件长这个样子：
{ "presets": [ ["env", { "modules": false, "targets": { "browsers": ["> 1%",
"last 2 versions", "not ie <= 8"] } }], "stage-2" ], "plugins":
["transform-vue-jsx", "transform-runtime"] }
插入组件配置就是这个样子：
到了这里就考虑怎么使用组件了：
不在src/main.js里加入代码，而在需要的组件/页面中单独引入（按需引入）：
其中里面的name表示的是这个组件的名字，如果是页面的话就没有这个name了：
也可以全部的组件都引入：
