win10安装linux的gcc

mysy2下载gcc 过程比较艰苦，2024年秋冬讲课，被linux毒打了3天

pacman -S mingw-w64-ucrt-x86_64-gcc 这个一次成功，不行继续接大招

实在不行安装vs
visualstudio.com 补了gcc的工具链大小1.5g

liunx改名字   改主机名字
sudo hostnamectl set-hostname <newhostname>

换源网站 help.mirrors.cernet.edu.cn
直接换源sudo apt install build-essential
ubuntu 20.04 LTS (focal) 配置如下
deb https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse

# deb https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
# deb-src https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

更换方法
1.备份

sudo cp /etc/apt/sources.list /etc/apt/sources.list.back

2.编辑

打开vim编辑器，把sources.list文件中所有的deb文件全部注释掉或者删除掉，然后把上面给的国内镜像复制去就可以。

vim /etc/apt/sources.list

3.更新

sudo apt update
sudo apt upgrade


cargo new proj && cd proj && cargo run