我对npm很新，所以这可能很简单，但我还没有发现它在任何地方都有提及。也许这只是一个配置错误。
我正慢慢进入npm和任务自动化，目前正在跟随this tutorial（CSS-Tricks）学习gulp的基础知识。
当我执行命令npm install gulp --save-dev时，我得到的结果与教程中的结果完全不同。安装gulp后，我项目的node_modules文件夹包含196个文件夹：
Mode LastWriteTime Length Name
---- ------------- ------ ----
d----- 11/22/2016 4:40 .bin
d----- 11/22/2016 4:40 ansi-regex
d----- 11/22/2016 4:40 ansi-styles
d----- 11/22/2016 4:40 archy
d----- 11/22/2016 4:40 arr-diff
d----- 11/22/2016 4:40 arr-flatten
d----- 11/22/2016 4:40 array-differ
d----- 11/22/2016 4:40 array-find-index
d----- 11/22/2016 4:40 array-uniq
d----- 11/22/2016 4:40 array-unique
d----- 11/22/2016 4:40 balanced-match
d----- 11/22/2016 4:40 beeper
d----- 11/22/2016 4:40 brace-expansion
d----- 11/22/2016 4:40 braces
d----- 11/22/2016 4:40 builtin-modules
d----- 11/22/2016 4:40 camelcase
d----- 11/22/2016 4:40 camelcase-keys
d----- 11/22/2016 4:40 chalk
d----- 11/22/2016 4:40 clone
d----- 11/22/2016 4:40 clone-stats
d----- 11/22/2016 4:40 concat-map
d----- 11/22/2016 4:40 core-util-is
d----- 11/22/2016 4:40 currently-unhandled
d----- 11/22/2016 4:40 dateformat
d----- 11/22/2016 4:40 decamelize
d----- 11/22/2016 4:40 defaults
d----- 11/22/2016 4:40 deprecated
d----- 11/22/2016 4:40 detect-file
d----- 11/22/2016 4:40 duplexer2
d----- 11/22/2016 4:40 end-of-stream
d----- 11/22/2016 4:40 error-ex
d----- 11/22/2016 4:40 escape-string-regexp
d----- 11/22/2016 4:40 expand-brackets
d----- 11/22/2016 4:40 expand-range
d----- 11/22/2016 4:40 expand-tilde
d----- 11/22/2016 4:40 extend
d----- 11/22/2016 4:40 extglob
d----- 11/22/2016 4:40 fancy-log
d----- 11/22/2016 4:40 filename-regex
d----- 11/22/2016 4:40 fill-range
d----- 11/22/2016 4:40 find-index
d----- 11/22/2016 4:40 find-up
d----- 11/22/2016 4:40 findup-sync
d----- 11/22/2016 4:40 fined
d----- 11/22/2016 4:40 first-chunk-stream
d----- 11/22/2016 4:40 flagged-respawn
d----- 11/22/2016 4:40 for-in
d----- 11/22/2016 4:40 for-own
d----- 11/22/2016 4:40 fs-exists-sync
d----- 11/22/2016 4:40 gaze
d----- 11/22/2016 4:40 get-stdin
d----- 11/22/2016 4:40 glob
d----- 11/22/2016 4:40 glob-base
d----- 11/22/2016 4:40 glob-parent
d----- 11/22/2016 4:40 glob-stream
d----- 11/22/2016 4:40 glob-watcher
d----- 11/22/2016 4:40 glob2base
d----- 11/22/2016 4:40 global-modules
d----- 11/22/2016 4:40 global-prefix
d----- 11/22/2016 4:40 globule
d----- 11/22/2016 4:40 glogg
d----- 11/22/2016 4:40 graceful-fs
d----- 11/22/2016 4:40 gulp
d----- 11/22/2016 4:40 gulp-util
d----- 11/22/2016 4:40 gulplog
d----- 11/22/2016 4:40 has-ansi
d----- 11/22/2016 4:40 has-gulplog
d----- 11/22/2016 4:40 hosted-git-info
d----- 11/22/2016 4:40 indent-string
d----- 11/22/2016 4:40 inflight
d----- 11/22/2016 4:40 inherits
d----- 11/22/2016 4:40 ini
d----- 11/22/2016 4:40 interpret
d----- 11/22/2016 4:40 is-absolute
d----- 11/22/2016 4:40 is-arrayish
d----- 11/22/2016 4:40 is-buffer
d----- 11/22/2016 4:40 is-builtin-module
d----- 11/22/2016 4:40 is-dotfile
d----- 11/22/2016 4:40 is-equal-shallow
d----- 11/22/2016 4:40 is-extendable
d----- 11/22/2016 4:40 is-extglob
d----- 11/22/2016 4:40 is-finite
d----- 11/22/2016 4:40 is-glob
d----- 11/22/2016 4:40 is-number
d----- 11/22/2016 4:40 is-posix-bracket
d----- 11/22/2016 4:40 is-primitive
d----- 11/22/2016 4:40 is-relative
d----- 11/22/2016 4:40 is-unc-path
d----- 11/22/2016 4:40 is-utf8
d----- 11/22/2016 4:40 is-windows
d----- 11/22/2016 4:40 isarray
d----- 11/22/2016 4:40 isexe
d----- 11/22/2016 4:40 isobject
d----- 11/22/2016 4:40 kind-of
d----- 11/22/2016 4:40 liftoff
d----- 11/22/2016 4:40 load-json-file
d----- 11/22/2016 4:40 lodash
d----- 11/22/2016 4:40 lodash.assignwith
d----- 11/22/2016 4:40 lodash.escape
d----- 11/22/2016 4:40 lodash.isarguments
d----- 11/22/2016 4:40 lodash.isarray
d----- 11/22/2016 4:40 lodash.isempty
d----- 11/22/2016 4:40 lodash.isplainobject
d----- 11/22/2016 4:40 lodash.isstring
d----- 11/22/2016 4:40 lodash.keys
d----- 11/22/2016 4:40 lodash.mapvalues
d----- 11/22/2016 4:40 lodash.pick
d----- 11/22/2016 4:40 lodash.restparam
d----- 11/22/2016 4:40 lodash.template
d----- 11/22/2016 4:40 lodash.templatesettings
d----- 11/22/2016 4:40 lodash._basecopy
d----- 11/22/2016 4:40 lodash._basetostring
d----- 11/22/2016 4:40 lodash._basevalues
d----- 11/22/2016 4:40 lodash._getnative
d----- 11/22/2016 4:40 lodash._isiterateecall
d----- 11/22/2016 4:40 lodash._reescape
d----- 11/22/2016 4:40 lodash._reevaluate
d----- 11/22/2016 4:40 lodash._reinterpolate
d----- 11/22/2016 4:40 lodash._root
d----- 11/22/2016 4:40 loud-rejection
d----- 11/22/2016 4:40 lru-cache
d----- 11/22/2016 4:40 map-cache
d----- 11/22/2016 4:40 map-obj
d----- 11/22/2016 4:40 meow
d----- 11/22/2016 4:40 micromatch
d----- 11/22/2016 4:40 minimatch
d----- 11/22/2016 4:40 minimist
d----- 11/22/2016 4:40 mkdirp
d----- 11/22/2016 4:40 multipipe
d----- 11/22/2016 4:40 natives
d----- 11/22/2016 4:40 normalize-package-data
d----- 11/22/2016 4:40 normalize-path
d----- 11/22/2016 4:40 number-is-nan
d----- 11/22/2016 4:40 object-assign
d----- 11/22/2016 4:40 object.omit
d----- 11/22/2016 4:40 once
d----- 11/22/2016 4:40 orchestrator
d----- 11/22/2016 4:40 ordered-read-streams
d----- 11/22/2016 4:40 os-homedir
d----- 11/22/2016 4:40 os-tmpdir
d----- 11/22/2016 4:40 osenv
d----- 11/22/2016 4:40 parse-filepath
d----- 11/22/2016 4:40 parse-glob
d----- 11/22/2016 4:40 parse-json
d----- 11/22/2016 4:40 path-exists
d----- 11/22/2016 4:40 path-root
d----- 11/22/2016 4:40 path-root-regex
d----- 11/22/2016 4:40 path-type
d----- 11/22/2016 4:40 pify
d----- 11/22/2016 4:40 pinkie
d----- 11/22/2016 4:40 pinkie-promise
d----- 11/22/2016 4:40 preserve
d----- 11/22/2016 4:40 pretty-hrtime
d----- 11/22/2016 4:40 process-nextick-args
d----- 11/22/2016 4:40 randomatic
d----- 11/22/2016 4:40 read-pkg
d----- 11/22/2016 4:40 read-pkg-up
d----- 11/22/2016 4:40 readable-stream
d----- 11/22/2016 4:40 rechoir
d----- 11/22/2016 4:40 redent
d----- 11/22/2016 4:40 regex-cache
d----- 11/22/2016 4:40 repeat-element
d----- 11/22/2016 4:40 repeat-string
d----- 11/22/2016 4:40 repeating
d----- 11/22/2016 4:40 replace-ext
d----- 11/22/2016 4:40 resolve
d----- 11/22/2016 4:40 resolve-dir
d----- 11/22/2016 4:40 semver
d----- 11/22/2016 4:40 sequencify
d----- 11/22/2016 4:40 sigmund
d----- 11/22/2016 4:40 signal-exit
d----- 11/22/2016 4:40 sparkles
d----- 11/22/2016 4:40 spdx-correct
d----- 11/22/2016 4:40 spdx-expression-parse
d----- 11/22/2016 4:40 spdx-license-ids
d----- 11/22/2016 4:40 stream-consume
d----- 11/22/2016 4:40 string_decoder
d----- 11/22/2016 4:40 strip-ansi
d----- 11/22/2016 4:40 strip-bom
d----- 11/22/2016 4:40 strip-indent
d----- 11/22/2016 4:40 supports-color
d----- 11/22/2016 4:40 through2
d----- 11/22/2016 4:40 tildify
d----- 11/22/2016 4:40 time-stamp
d----- 11/22/2016 4:40 trim-newlines
d----- 11/22/2016 4:40 unc-path-regex
d----- 11/22/2016 4:40 unique-stream
d----- 11/22/2016 4:40 user-home
d----- 11/22/2016 4:40 util-deprecate
d----- 11/22/2016 4:40 v8flags
d----- 11/22/2016 4:40 validate-npm-package-license
d----- 11/22/2016 4:40 vinyl
d----- 11/22/2016 4:40 vinyl-fs
d----- 11/22/2016 4:40 which
d----- 11/22/2016 4:40 wrappy
d----- 11/22/2016 4:40 xtend
为了确保在重新安装Node.js之前我没有弄乱它，结果是一样的。我正在运行Windows 10。
这应该发生吗？如果没有，我该如何解决？
答案 0 :(得分：0)
原来我的Google-Fu不像过去那样。我发现了一个关于on this very page的问题。
显然这是默认情况下较新版本的npm安装依赖项的方式，一切都很好，教程只是使用旧版本的npm。
答案 1 :(得分：0)
这很正常。 npm解析了gulp的整个依赖树，这可能很多。依赖项可以包含依赖项，然后包含其他依赖项。
此外，npm将所有内容安装为平面且无嵌套：https://github.com/npm/npm/issues/9809，这就是您的目录中有很多文件的原因。