/System/Library/CoreServices/Applications/
输入 cd /System/Library/CoreServices/Applications发现Keychain Access.app其实还在输入 ls打开钥匙串输入 open Keychain Access.app/
cd /System/Library/CoreServices/Applications
ls
open Keychain Access.app/
choose
ps: 如果经常使用,可以自己选择 在程序坞中保留