更新Ubuntu的Golang版本有以下两种常用方法：
wget https://golang.org/dl/go1.21.5.linux-amd64.tar.gz。sudo rm -rf /usr/local/go。/usr/local目录：sudo tar -C /usr/local -xzf go1.21.5.linux-amd64.tar.gz。~/.bashrc或~/.zshrc文件，添加export GOROOT=/usr/local/go export GOPATH=$HOME/go export PATH=$GOROOT/bin:$GOPATH/bin:$PATH。source ~/.bashrc或source ~/.zshrc。go version。sudo apt update && sudo apt upgrade -y。sudo apt install golang-go -y。go version。
