Go environment construction and start

go Introduction to

One 、go The origin of

Go Language is also called Golang Language , It's Google Goggle The company to launch .

Two 、go Characteristics

1. Automatic garbage collection
2. Function can return multiple values
3. Concurrent programming
4. No dependence on hell , Even glibc
5. Compile once , Copy anywhere , Deployment is extremely convenient

go Configuration of language development environment

One 、go Installation

linux Platform installation go

1. Get into tmp Under the table of contents 
2.wget https://golang.google.cn/dl/go1.18.3.linux-amd64.tar.gz
3.tar -xzvf go1.18.3.linux-amd64.tar.gz
4.mv go /usr/local/

5. stay ~/.bashrc Add GOPATH Variable

#  The installation directory 
export GOROOT=/usr/local/go 
#  Code directory  
export GOPATH=~/code 
export PATH=$GOPATH:$GOROOT/bin:$PATH

6. Restart it ~/.bashrc file

source ~/.bashrc

7. Test for successful installation

go version

If there is go Output of version number , explain go The command installation succeeded

Mac Platform installation go

brew install go 
go version 
	go version go1.18.3 darwin/amd64

windows Platform installation go

1、 download ：

 Download path ：https://golang.google.cn/dl/go1.18.3.windows-amd64.msi

2、 install msi file
Add the installation path to the environment variable ：

 Such as ：go The installation to  C:\Program Files\Go  Catalog , Then add the environment variable GOPATH: C:\Program Files\Go\
 And will  %GOPATH%\bin  Add to PATH

If you install , The system automatically adds GOPATH environment variable , Then we'll just 3、 Add one after another GOROOT environment variable

4、 Check
open cmd Command line , Input ： go version

Two 、IDE Installation

linux platform vim To configure

1. download Vim Configuration tool

git clone https://github.com/lexkong/lexVim

2. Get into lexVim Catalog , download go ide The required binaries ：

cd lexVim 
git clone https://github.com/lexkong/vim-go-ide-bin

3. Start the installation script ：

./start_vim.sh

Be careful , If the above method cannot be installed , It can be used from windows Put it directly inside lexVim Files are sent in , Special attention is paid to the problem of carriage return and blank space , We can download dos2unix solve
When the following problems occur, it is the problem of newline

terms of settlement

yum install dos2unix -y
dos2unix start_vim.sh

vim IDE Common functions

1.gd  perhaps  ctrl + ]  Jump to the corresponding function source  =>  If there is no response, please wait , It may be slow 
2.ctrl + o  Jump to the previous position 
3.<F1>  Open help , :q  sign out 
4.<F2>  Open the directory window , Press again to close the directory window 
5.<F4>  List of recent documents , :q  sign out 
6.<F6>  Add function comments 
7. other ：
	<F3>  Exhibition tag, Press again to close tag window 
	<F5>  stay  Vim  Open the file search window above , :q  sign out 
	ctrl + t  Label withdrawal 
	<F9>  Generate  tag

 Be careful ：
1、 Jump from code to code , Place the cursor over a function call , Press  ctl + ]  It will jump to the definition of the function , Press  ctrl + o  Will jump back .
2、 Exit a window in a certain mode , Use last line mode  :q that will do 
3、 stay vim Paste text in , need  :set paste  It can be pasted normally ！

windows platform goland install

Download address ：https://www.jetbrains.com/go/
You can try 30 God , Self cracking