用vue,react開(kāi)發(fā)的時(shí)候，怎么知道依賴包需要安裝到生產(chǎn)還是開(kāi)發(fā)環(huán)境

{
  "name": "xxxxxx",
  "version": "11111",
  "description": "xxxxxxx",
  "author": xxxxx",
  "private": true,
  "scripts": {
    "dev": "node server.js",
    "start": "node server.js",
    "build": "node build.js "
  },
  "dependencies": {
      
  },
  "devDependencies": {
    "webpack": "^2.6.1",
  }
}

生產(chǎn)環(huán)境和生成環(huán)境的區(qū)別在于，根據(jù)命令行的輸入打包不一樣的，如npm run dev或npm run build,開(kāi)發(fā)包有提示，報(bào)錯(cuò)，但是生產(chǎn)環(huán)境會(huì)把獲取壓縮的文件，減少文件大小，如果生產(chǎn)環(huán)境沒(méi)有，會(huì)默認(rèn)讀取開(kāi)發(fā)環(huán)境的包