1，下載

方式1：直接wget下載

https://golang.org/doc/install

因為翻牆問題，無法下載

方式2：在自己電腦下載

https://golang.org/doc/install?download=go1.15.2.linux-amd64.tar.gz

再把tar.gz檔案上傳到centos機器上

2，安裝

If you have a previous version of Go installed, be sure toremove itbefore installing another.

1. Download the archive and extract it into /usr/local, creating a Go tree in /usr/local/go.

   For example, run the following as root or throughsudo

   :

   tar -C /usr/local -xzf go1.15.2.linux-amd64.tar.gz
   

2. Add /usr/local/go/bin to thePATHenvironment variable.

   You can do this by adding the following line to your $HOME/.profile or /etc/profile (for a system-wide installation):

   export PATH=$PATH:/usr/local/go/bin
   

   Note:Changes made to a profile file may not apply until the next time you log into your computer. To apply the changes immediately, just run the shell commands directly or execute them from the profile using a command such assource $HOME/.profile

   .

3. Verify that you've installed Go by opening a command prompt and typing the following command:

   $ go version
   

4. Confirm that the command prints the installed version of Go.