安裝go語言的編譯環境，在安裝到 delve時候出現如下錯誤：
If reporting this issue please do so at (not Homebrew/brew or Homebrew/core): https://github.com/go-delve/homebrew-delve/issues These open issues may also help: Upgrade to delve fails https://github.com/go-delve/homebrew-delve/issues/20 security: SecKeychainSearchCopyNext: The specified item could not be found in the keychain. https://github.com/go-delve/homebrew-delve/issues/19 Mac install error, OS version 10.12.6, go version go1.8.3 https://github.com/go-delve/homebrew-delve/issues/17 The specified item could not be found in the keychain https://github.com/go-delve/homebrew-delve/issues/16 Issue updating to 0.12.2 https://github.com/go-delve/homebrew-delve/issues/12 dlv-cert: no identity found https://github.com/go-delve/homebrew-delve/issues/1 Executable does not get installed on MacOS https://github.com/go-delve/homebrew-delve/issues/18 deps: do not install go if it's available on the system https://github.com/go-delve/homebrew-delve/issues/9
解決方法：
1. cd $HOME/Library/Caches/Homebrew
2. 執行 tar xf delve-*.gz
3 cd 到解壓之后的文件夾路徑中 （我的是 delve-1.0.0-rc.1 ）
4. 執行 sh scripts/gencert.sh
5. 最后在重新 執行 brew install go-delve/delve/delve
一切搞定。安裝成功