8.7G代码下载后解压完，需要用到 jiri 代码管理工具，这个工具只能通过网络获取：
终端输入：
curl -s https://raw.githubusercontent.com/fuchsia-mirror/jiri/master/scripts/bootstrap_jiri | bash -s “$MY_ROOT”
后出现以下错误：
curl: (7) Failed to connect to fuchsia.googlesource.com port 443: Operation timed out
Cannot find prebuilt Jiri binary.
然后按照qq群网友 "毒蛇1983"找到的镜像地址：
curl -s https://raw.githubusercontent.com/vanadium/go.jiri/master/scripts/bootstrap_jiri | bash -s “$MY_ROOT”
安装成功，但在最后升级操作还是端口443错误：
‘git clone https://vanadium.googlesource.com/manifest /var/folders/s0/3_0x77ln1zjgxt33yn6kd0xh0000gn/T/jiri-load977930941/manifest_8f9c1ad9412dceb0’ failed:
Cloning into ‘/var/folders/s0/3_0x77ln1zjgxt33yn6kd0xh0000gn/T/jiri-load977930941/manifest_8f9c1ad9412dceb0’…
fatal: unable to access ‘https://vanadium.googlesource.com/manifest/’: Failed to connect to vanadium.googlesource.com port 443: Operation timed out
ERROR: Failed 1 times in a row. Last error:
‘git clone https://vanadium.googlesource.com/manifest /var/folders/s0/3_0x77ln1zjgxt33yn6kd0xh0000gn/T/jiri-load977930941/manifest_8f9c1ad9412dceb0’ failed:
Cloning into ‘/var/folders/s0/3_0x77ln1zjgxt33yn6kd0xh0000gn/T/jiri-load977930941/manifest_8f9c1ad9412dceb0’…
fatal: unable to access ‘https://vanadium.googlesource.com/manifest/’: Failed to connect to vanadium.googlesource.com port 443: Operation timed out
qq群网友 "稀饭~~~“说： 443端口必须验证证书的
qq群网友 “毒蛇1983” 在后边讨论说：curl 7 443port,是终端代理问题
也搞不清楚到底是哪里的问题了，希望有大佬们能帮助下查查是什么问题，怎么解决？