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>

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

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

今天刚回来，2年也没有动电脑了，好多东西都忘记了

字数不够，我在水字数

哎，今天白嫖龙门派的大礼包，刚赶上道教养生的开店仪式，吃喝拿，吃东西，喝茶，拿书

毫无违和感，今天占的便宜要等几天去还回去

天道轮回