Golang language introduction

Introduction to go language features

Install go on linux and run it

Install go and goland in win10

Introduction to go's first program running and compilation commands

Introduction to golang basic syntax

Introduction to golang escape characters and output functions

Variable naming methods and naming rules

Anonymous variables local variables global variables

Introduction to data type int

data type value float

Data type Boolean type

Introduction and definition of strings

String operation function 1

String operation function 2

Convert integer to other data type

Convert string to other data type

Arithmetic operators and precautions

Relational operators and other operators

Constant definition declaration uses

flow control statement if

flow control statement switch

Loop control for

Loop control range-break-goto

Several ways to define array declarations

Two-dimensional array declaration and array loop traversal

Array value transfer and array summary

Introduction to slicing and make definition of slicing

Slice definition and empty slice nil slice

Slices and array references

Slice append dynamic expansion

Slice append is separated from the underlying array

Remove elements from slice

Slice copy, two-dimensional slice and slice traversal

Package sort sorts slices

Introduction to pointer definition and use

Map definition statement and addition, deletion, modification and query operations

Map loop traversal and map traversal in order

Element map type slice and value is slice type map

Function definition and variable scope

Function parameters and return values

Use of anonymous functions

Use of recursive functions and closure functions

Introduction to defer and analysis of operation process

Init function usage introduction and execution sequence demonstration

Custom type of function

Higher-order functions as parameters and as return values

Structure introduction definition and instantiation

Various ways of instantiating structures

Anonymous structures and anonymous fields

The field type is slice map

Nested structure

Structure method definition and call

Structure value passing pointer type receiver

Structure inheritance combination and constructor

Structure json conversion and tag tag

Introduction to packages and custom packages

Custom package reference

go get third-party package download to local

Use of third-party packages and use of other go commands

Use of time package

Error handling panic-defer-recover