前端项目配置下载源

1. npm:
   • npm config set registry registry=https://registry.npmmirror.com -g
   • 验证: npm config get registry
2. yarn:
   • yarn config set registry registry=https://registry.npmmirror.com -g
   • yarn config get registry
   • yarn找不到, 需要管理员在命令行: set-executionpolicy remotesigned
3. pnpm:
   • pnpm config set registry https://registry.npmmirror.com/
   • pnpm config get registry