为什么我在安装webpack的时候，我明明已经安装了，但是在查询版本的时候会显示webpack是无效的命令？ 安装webpack后还是提示webpack不是内部命令

\u600e\u6837\u67e5\u770b\u5b89\u88c5webpack\u7684\u7248\u672c\u53f7

1\u3001\u9996\u5148\u6309\u4e0b\u5feb\u6377\u952ecrtl\uff0bR\u952e\u6253\u5f00windows\u7684\u8fd0\u884c\u5bf9\u8bdd\u6846\uff1a

2\u3001\u7136\u540e\u63a5\u7740\u5728\u8fd0\u884c\u4e2d\u8f93\u5165cmd\u547d\u4ee4\uff0c\u4e4b\u540e\u70b9\u51fb\u786e\u5b9a\u6253\u5f00\u547d\u4ee4\u63d0\u793a\u7b26\uff1a

3\u3001\u6700\u540e\u5728\u547d\u4ee4\u63d0\u793a\u7b26\u4e2d\u8f93\u5165\u201cwebpack -v\u201d\uff0c\u5373\u53ef\u6253\u5370\u51fa\u7cfb\u7edf\u5f53\u524d\u5b89\u88c5\u7684webpack\u7248\u672c\u3002\u4ee5\u4e0a\u5c31\u662f\u67e5\u770b\u5b89\u88c5webpack\u7684\u7248\u672c\u53f7\u7684\u65b9\u6cd5\uff1a

\u56e0\u4e3a\u5b89\u88c5\u6b65\u9aa4\u51fa\u73b0\u4e86\u95ee\u9898\u3002
1.\u9996\u5148\u4f60\u9700\u8981\u5b89\u88c5\u4e00\u4e2a\u5168\u5c40\u7684webpack\uff1b
npm install webpack -g\uff1b
\u8fd9\u6837\u4f60\u624d\u53ef\u4ee5\u6b63\u786e\u7684\u4f7f\u7528webpack\u8fd9\u4e2a\u547d\u4ee4\uff1b
2.\u7136\u540e, \u4f60\u8fd8\u53ef\u4ee5\u5728\u5f53\u524d\u9879\u76ee\u91cc\u9762\u4e5f\u5b89\u88c5\u4e00\u4e2awebpack, \u8fd9\u4e5f\u662f\u5b98\u65b9\u63a8\u8350\u7684\u505a\u6cd5\uff1b
npm install webpack --save-dev\uff1b
\u8fd9\u6837\u5c31\u53ef\u4ee5\u5728\u4f60\u7684webpack.config.js\u91cc\u9762\u65b9\u4fbf\u7684\u5f15\u7528webpack\uff1b
// webpack.config.js\uff1b
var path = require('path');
var webpack = require('webpack');
3.\u7136\u540e\u5728\u4f7f\u7528\u4e00\u4e9bplugin\u7684\u65f6\u5019\u5c31\u6bd4\u8f83\u65b9\u4fbf\u4e86\uff1b
new webpack.optimize.CommonsChunkPlugin('common.js')\u3002

1.\u4ee3\u7801\u62c6\u5206
webpack\u6709\u4e24\u79cd\u7ec4\u7ec7\u4ee3\u7801\u7684\u65b9\u5f0f \u4e00\u79cd\u662f\u540c\u6b65\u4e00\u79cd\u662f\u5f02\u6b65\u3002\u5f02\u6b65\u4f9d\u8d56\u4f5c\u4e3a\u5206\u5272\u70b9\uff0c\u5f62\u6210\u4e00\u4e2a\u65b0\u7684\u5757\u3002\u5728\u4f18\u5316\u8fc7\u4e86\u4f9d\u8d56\u6811\u540e\uff0c\u6bcf\u4e00\u4e2a\u5f02\u6b65\u533a\u5757\u90fd\u4f5c\u4e3a\u4e00\u4e2a\u6587\u4ef6\u88ab\u6253\u5305\u3002
2.loader
webpack \u672c\u8eab\u53ea\u5904\u7406\u539f\u751f\u7684js,\u4f46\u662floader\u8f6c\u5316\u5668\u53ef\u4ee5\u5c06\u5404\u79cd\u8d44\u6e90\u8f6c\u6362\u6210\u4e3ajs\u6a21\u5757\u3002\u8fd9\u6837\u4efb\u4f55\u8d44\u6e90\u90fd\u53ef\u4ee5\u6210\u4e3a webpack\u7684\u5904\u7406\u5bf9\u8c61\u3002\u6bd4\u5982\u5904\u7406css\u7684cssloader,\u5904\u7406coffeescript coffeesecriptloader\u3002
3.\u667a\u80fd\u89e3\u6790
webpack\u662f\u4e00\u4e2a\u667a\u80fd\u89e3\u6790\u5668\uff0c\u53ef\u4ee5\u5904\u7406\u51e0\u4e4e\u4efb\u4f55\u7b2c\u4e09\u65b9\u7684\u5e93\uff0c\u65e0\u8bba\u4ed6\u4eec\u7684\u6a21\u5757\u5f62\u5f0f\u662fcommonjs\uff0camd \u8fd8\u662f\u666e\u901a\u7684js\u6587\u4ef6\u3002\u751a\u81f3\u52a0\u8f7d\u4f9d\u8d56\u7684\u65f6\u5019\u53ef\u4ee5\u52a8\u6001\u8868\u8fbe\u5f0f
require("./templates/" + name + ".jade")
4.\u63d2\u4ef6\u7cfb\u7edf
webpack\u6709\u4e30\u5bcc\u7684\u63d2\u4ef6\u7cfb\u7edf\u3002\u5927\u591a\u6570\u7684\u529f\u80fd\u90fd\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e2a\u63d2\u4ef6\u7cfb\u7edf\u8fd0\u884c\u3002\u8fd8\u53ef\u4ee5\u5f00\u53d1\u548c\u4f7f\u7528\u5f00\u6e90\u7684webpack\u7684\u63d2\u4ef6\uff0c\u6765\u6ee1\u8db3\u5404\u5f0f\u5404\u6837\u7684\u9700\u6c42\u3002

因为你们公司不允许自己改变环境变量
所以无法安装webpack
请采纳

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