Golang source package collection

• archive/tar and /zip-compress： Compress ( decompression ) File function .
• fmt-io-bufio-path/filepath-flag:
  • fmt: The function of formatting input and output is provided .
  • io: Basic input and output functions are provided , Most of them are encapsulation around system functions .
  • bufio: Encapsulation of buffered I / O function .
  • path/filepath: Used to operate on the target Filename Path in the current system .
  • flag: Operation on command line parameters .　　
• strings-strconv-unicode-regexp-bytes:
  • strings: Provides operations on strings .
  • strconv: Provides the ability to convert strings to base types .
  • unicode: by unicode Type string provides special functions .
  • regexp: Regular expression function .
  • bytes: Provide the operation of character segmentation .
  • index/suffixarray: Substring quick query .
• math-math/cmath-math/big-math/rand-sort:
  • math: Basic mathematical functions .
  • math/cmath: The operation of the plural .
  • math/rand: Pseudo-random number generation .
  • sort: Sorting and customizing collections for arrays .
  • math/big: The realization and calculation of large numbers . 　　
• container-/list-ring-heap: Implement operations on collections .
  • list: Double linked list .
  • ring: Circular list .
• builtin: Describes the allowed godoc Documents that provide language identifiers .
• compress/bzip2 /flate /gzip /lzw zlib
  • compress/bzip2: Realized bzip2 Decompression of .
  • flate: Realized DEFLATE Data compression format , Such as RFC 1951 Described in .
  • gzip: Realized gzip Format compressed file read and write .
  • lzw: Realized Lempel-Ziv-Welch Compressed data format .
  • zlib: Realized zlib Read and write data compression format .
• context: Defined Context type , It spans API The deadline is carried between the boundary and the process , Cancel the value of the signal and other request ranges .
• crypto crypto/md5
  • crypto: A collection of common cryptographic constants
  • crypto/md5: md5 encryption
  • crypto/sha1: sha1 encryption
• errors: The method of operating error is realized
• expvar: Provide standardized interfaces for common variables .
• hash: A common interface implemented by all hash functions .
• html: HTML The function of transcoding and escaping text .
• image、/color、/draw、/gif /jpeg png
  • image: Realize the basic two-dimensional graphics library .
  • image/color: Color basic library
  • image/draw: Provide image synthesis function
  • image/gif:gif Image decoders and encoders
  • image/jpeg:
  • image/png:
• sort: Provides primitive functions for sorting slices and user-defined collections .
• unsafe: Contains some breaks Go Language “ Type safety ” The order of , The general program will not be used , Available in C/C++ In the call of the program .
• syscall-os-os/exec:
  • os: Provide us with a platform independent operating system functional interface , Adoption class Unix Design , Hide the differences between different operating systems , Make different file systems and operating system objects behave the same .
  • os/exec: Provides us with the way to run external operating system commands and programs .
  • syscall: The outer package at the bottom , Provides the basic interface of the underlying call of the operating system .
• time-log:
  • time: Basic operation of date and time .
  • log: Record the log generated when the program is running , We'll use it later in the chapter .
• encoding/json-encoding/xml-text/template:
  • encoding/json: Read and decode and write and encode JSON data .
  • encoding/xml: ordinary XML1.0 Parser .
  • text/template: Generative image HTML The same data and text mixed data-driven .
• net-net/http:
  • net: Basic operation of network data .
  • http: Provides an extensible HTTP Servers and underlying clients , analysis HTTP Request and reply .
• runtime: Go The interaction of the program at runtime , For example, garbage collection and process creation .
• reflect: Realize reflection through program runtime , Let the program operate on any type of variable .
• sql: Provide the data base with the surrounding SQL ( Or class SQL) The general interface of