cd 项目目录
npm install -y 初始化信息，-y表示所有的选择都表示确定
执行完之后会自动生成一个package.json文件
添加依赖：
npm -i(install) jquery 安装jQuery 默认从当前目录找，找不到网上自动下载
删除依赖：
npm uninstall xxxxx
更新依赖：
npm update xxxxx'
之后所有的依赖包都会安装到这里
{
"_from": "bootstrap",
"_id": "bootstrap@4.0.0",
"_inBundle": false,
"_integrity": "sha512-gulJE5dGFo6Q61V/whS6VM4WIyrlydXfCgkE+Gxe5hjrJ8rXLLZlALq7zq2RPhOc45PSwQpJkrTnc2KgD6cvmA==",
"_location": "/bootstrap",
"_phantomChildren": {},
"_requested": {
"type": "tag",
"registry": true,
"raw": "bootstrap",
"name": "bootstrap",
"escapedName": "bootstrap",
"rawSpec": "",
"saveSpec": null,
"fetchSpec": "latest"
},
"_requiredBy": [
"#USER",
"/"
],
"_resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.0.0.tgz",
"_shasum": "ceb03842c145fcc1b9b4e15da2a05656ba68469a",
"_spec": "bootstrap",
"_where": "G:\virtualenv\表严肃课程\npm火速上手\npm的常用操作",
"author": {
"name": "The Bootstrap Authors",
"url": "https://github.com/twbs/bootstrap/graphs/contributors"
},
"browserslist": [
"last 1 major version",
">= 1%",
"Chrome >= 45",
"Firefox >= 38",
"Edge >= 12",
"Explorer >= 10",
"iOS >= 9",
"Safari >= 9",
"Android >= 4.4",
"Opera >= 30"
],
"bugs": {
"url": "https://github.com/twbs/bootstrap/issues"
},
"bundleDependencies": false,
"bundlesize": [
{
"path": "./dist/css/bootstrap-grid.css",
"maxSize": "5 kB"
},
{
"path": "./dist/css/bootstrap-grid.min.css",
"maxSize": "5 kB"
},
{
"path": "./dist/css/bootstrap-reboot.css",
"maxSize": "3 kB"
},
{
"path": "./dist/css/bootstrap-reboot.min.css",
"maxSize": "3 kB"
},
{
"path": "./dist/css/bootstrap.css",
"maxSize": "25 kB"
},
{
"path": "./dist/css/bootstrap.min.css",
"maxSize": "21 kB"
},
{
"path": "./dist/js/bootstrap.bundle.js",
"maxSize": "45 kB"
},
{
"path": "./dist/js/bootstrap.bundle.min.js",
"maxSize": "25 kB"
},
{
"path": "./dist/js/bootstrap.js",
"maxSize": "20 kB"
},
{
"path": "./dist/js/bootstrap.min.js",
"maxSize": "15 kB"
}
],
"contributors": [
{
"name": "Twitter, Inc."
}
],
"dependencies": {},
"deprecated": false,
"description": "The most popular front-end framework for developing responsive, mobile first projects on the web.",
"devDependencies": {
"@babel/cli": "7.0.0-beta.37",
"@babel/core": "7.0.0-beta.37",
"@babel/preset-env": "7.0.0-beta.37",
"autoprefixer": "^7.2.4",
"babel-eslint": "^8.2.1",
"babel-plugin-transform-es2015-modules-strip": "^0.1.1",
"bundlesize": "^0.15.3",
"clean-css-cli": "^4.1.10",
"cross-env": "^5.1.3",
"eslint": "^4.15.0",
"eslint-plugin-compat": "^2.1.0",
"glob": "^7.1.2",
"htmllint-cli": "^0.0.6",
"jsunitsaucelabs": "^1.3.0",
"karma": "^2.0.0",
"karma-chrome-launcher": "^2.2.0",
"karma-detect-browsers": "^2.2.6",
"karma-firefox-launcher": "^1.1.0",
"karma-qunit": "^1.2.1",
"node-sass": "^4.7.2",
"nodemon": "^1.14.10",
"npm-run-all": "^4.1.2",
"popper.js": "^1.12.9",
"postcss-cli": "^4.1.1",
"qunitjs": "^2.4.1",
"rollup": "^0.53.4",
"rollup-plugin-babel": "4.0.0-beta.0",
"rollup-plugin-node-resolve": "^3.0.2",
"shelljs": "^0.7.8",
"shx": "^0.2.2",
"sri-toolbox": "^0.2.0",
"stylelint": "^8.4.0",
"stylelint-config-recommended-scss": "^3.0.0",
"stylelint-config-standard": "^18.0.0",
"stylelint-order": "^0.8.0",
"stylelint-scss": "^2.2.0",
"uglify-js": "^3.3.5",
"vnu-jar": "^17.11.1",
"workbox-build": "^2.1.2"
},
"engines": {
"node": ">=6"
},
"files": [
"dist/",
"js/{src,dist}/",
"scss/"
],
"homepage": "https://getbootstrap.com",
"jspm": {
"registry": "npm",
"main": "js/bootstrap",
"directories": {
"lib": "dist"
},
"shim": {
"js/bootstrap": {
"deps": [
"jquery",
"popper.js"
],
"exports": "$"
}
},
"dependencies": {},
"peerDependencies": {
"jquery": "1.9.1 - 3",
"popper.js": "^1.12.9"
}
},
"keywords": [
"css",
"sass",
"mobile-first",
"responsive",
"front-end",
"framework",
"web"
],
"license": "MIT",
"main": "dist/js/bootstrap",
"name": "bootstrap",
"peerDependencies": {
"jquery": "1.9.1 - 3",
"popper.js": "^1.12.9"
},
"repository": {
"type": "git",
"url": "git+https://github.com/twbs/bootstrap.git"
},
"sass": "scss/bootstrap.scss",
"scripts": {
"bundlesize": "bundlesize",
"css": "npm-run-all --parallel css-lint* css-compile* --sequential css-prefix* css-minify*",
"css-compile": "node-sass --output-style expanded --source-map true --source-map-contents true --precision 6 scss/bootstrap.scss dist/css/bootstrap.css && node-sass --output-style expanded --source-map true --source-map-contents true --precision 6 scss/bootstrap-grid.scss dist/css/bootstrap-grid.css && node-sass --output-style expanded --source-map true --source-map-contents true --precision 6 scss/bootstrap-reboot.scss dist/css/bootstrap-reboot.css",
"css-compile-docs": "node-sass --output-style expanded --source-map true --source-map-contents true --precision 6 assets/scss/docs.scss assets/css/docs.min.css",
"css-docs": "npm-run-all --parallel css-lint-docs css-compile-docs --sequential css-prefix-docs css-minify-docs",
"css-lint": "stylelint --syntax scss "scss/**/*.scss"",
"css-lint-docs": "stylelint --syntax scss "assets/scss/*.scss" && stylelint "docs/**/*.css"",
"css-lint-vars": "node build/lint-vars.js scss/ assets/scss/",
"css-main": "npm-run-all --parallel css-lint css-compile --sequential css-prefix css-minify",
"css-minify": "cleancss --level 1 --source-map --source-map-inline-sources --output dist/css/bootstrap.min.css dist/css/bootstrap.css && cleancss --level 1 --source-map --source-map-inline-sources --output dist/css/bootstrap-grid.min.css dist/css/bootstrap-grid.css && cleancss --level 1 --source-map --source-map-inline-sources --output dist/css/bootstrap-reboot.min.css dist/css/bootstrap-reboot.css",
"css-minify-docs": "cleancss --level 1 --source-map --source-map-inline-sources --output assets/css/docs.min.css assets/css/docs.min.css",
"css-prefix": "postcss --config build/postcss.config.js --replace "dist/css/*.css" "!dist/css/*.min.css"",
"css-prefix-docs": "postcss --config build/postcss.config.js --replace "assets/css/docs.min.css" "docs/**/*.css"",
"dist": "npm-run-all --parallel css js",
"docs": "npm-run-all --parallel css-docs js-docs --sequential docs-compile docs-lint",
"docs-compile": "bundle exec jekyll build",
"docs-github": "shx echo "github: true" > twbsconfig.yml && npm run docs-compile -- --config _config.yml,twbsconfig.yml && shx rm ./twbsconfig.yml",
"docs-github-serve": "bundle exec jekyll serve --skip-initial-build --no-watch",
"docs-lint": "npm-run-all docs-lint-*",
"docs-lint-htmllint": "htmllint --rc build/.htmllintrc "_gh_pages/**/*.html" "js/tests/**/*.html"",
"docs-lint-vnu-jar": "node build/vnu-jar.js",
"docs-serve": "bundle exec jekyll serve",
"docs-upload-preview": "build/upload-preview.sh",
"docs-workbox-precache": "node build/workbox.js",
"js": "npm-run-all js-lint* js-compile js-minify",
"js-compile": "npm-run-all --parallel js-compile-*",
"js-compile-bundle": "rollup --environment BUNDLE:true --config build/rollup.config.js --sourcemap",
"js-compile-plugins": "cross-env PLUGINS=true babel js/src/ --out-dir js/dist/ --source-maps",
"js-compile-standalone": "rollup --environment BUNDLE:false --config build/rollup.config.js --sourcemap",
"js-docs": "npm-run-all js-lint-docs js-minify-docs",
"js-lint": "eslint js/ build/",
"js-lint-docs": "eslint assets/js/ docs/ sw.js",
"js-main": "npm-run-all js-lint js-compile js-minify",
"js-minify": "npm-run-all --parallel js-minify-*",
"js-minify-bundle": "uglifyjs --compress typeofs=false --mangle --comments "/^!/" --source-map "content=dist/js/bootstrap.bundle.js.map,includeSources,url=bootstrap.bundle.min.js.map" --output dist/js/bootstrap.bundle.min.js dist/js/bootstrap.bundle.js",
"js-minify-docs": "uglifyjs --mangle --comments "/^!/" --output assets/js/docs.min.js assets/js/vendor/anchor.min.js assets/js/vendor/clipboard.min.js assets/js/vendor/holder.min.js "assets/js/src/*.js"",
"js-minify-standalone": "uglifyjs --compress typeofs=false --mangle --comments "/^!/" --source-map "content=dist/js/bootstrap.js.map,includeSources,url=bootstrap.min.js.map" --output dist/js/bootstrap.min.js dist/js/bootstrap.js",
"js-test": "npm-run-all --parallel js-test-karma*",
"js-test-cloud": "ruby -r webrick -e "s = WEBrick::HTTPServer.new(:Port => 3000, :DocumentRoot => Dir.pwd, :Logger => WEBrick::Log.new('/dev/null'), :AccessLog => []); trap('INT') { s.shutdown }; s.start" & node build/saucelabs-unit-test.js",
"js-test-karma": "karma start js/tests/karma.conf.js",
"js-test-karma-old": "cross-env USE_OLD_JQUERY=true npm run js-test-karma",
"maintenance-dependencies": "ncu -a -x jquery && npm update && bundle update && shx echo "Manually update assets/js/vendor/*, js/tests/vendor/* and .travis.yml"",
"postdocs-compile": "npm run docs-workbox-precache",
"release-sri": "node build/generate-sri.js",
"release-version": "node build/change-version.js",
"release-zip": "cd dist/ && zip -r9 bootstrap-$npm_package_version-dist.zip * && shx mv bootstrap-$npm_package_version-dist.zip ..",
"test": "npm-run-all dist js-test docs-compile docs-lint bundlesize",
"watch": "npm-run-all --parallel watch-css watch-js",
"watch-css": "nodemon --ignore js/ --ignore dist/ -e scss -x "npm run css"",
"watch-js": "nodemon --ignore scss/ --ignore js/dist/ --ignore dist/ -e js -x "npm run js-compile""
},
"style": "dist/css/bootstrap.css",
"version": "4.0.0"
}