## 安装
[完整的mango安装教程](http://www.jianshu.com/p/1bb663918cfd)
---
## 安装提示
A CA file has been bootstrapped using certificates from the SystemRoots
keychain. To add additional certificates (e.g. the certificates added in
the System keychain), place .pem files in `/usr/local/etc/openssl/certs`.
and run
```bash
/usr/local/opt/openssl/bin/c_rehash
```
This formula is keg-only, which means it was not symlinked into `/usr/local`.
Apple has deprecated
