首先我想从网站下载，ngrok-stable-darwin-amd64.zip。 当我尝试通过终端解压，我得到：
Archive: /Users/User/Downloads/ngrok-stable-darwin-amd64.zip
End-of-central-directory signature not found. Either this file is not
a zipfile, or it constitutes one disk of a multi-part archive. In the
latter case the central directory and zipfile comment will be found on
the last disk(s) of this archive.
unzip: cannot find zipfile directory in one of /Users/User/Downloads/ngrok-stable-darwin-amd64.zip or
/Users/User/Downloads/ngrok-stable-darwin-amd64.zip.zip, and cannot find /Users/User/Downloads/ngrok-stable-darwin-amd64.zip.ZIP, period.
与取档解压与响应：
数据被破坏：在读取文件的内容“ngrok-stable-darwin-amd64.zip”有一个问题
尝试了自制路线， brew cask install ngrok ，无济于事：
==> Downloading https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-darwin-amd64.z
##### 7.0%
curl: (56) SSLRead() return error -9806
Error: Download failed on Cask 'ngrok' with message: Download failed: https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-darwin-amd64.zip
The incomplete download is cached at /Users/User/Library/Caches/Homebrew/Cask/ngrok--2.1.3,4VmDzA7iaHb.zip.incomplete
我试图让流浪份额 。 为什么我不能安装ngrok，或者更重要的是，我怎么能？
请＆谢谢。
