https://blog.csdn.net/ahualong1/article/details/127566871
1. step 1:
可能会报错：
The “System Roots” keychain cannot be modified.
To change whether a root certificate is trusted, open it in Keychain Access and modify its Trust Settings. New root certificates should be added to the login keychain for the current user, or to the System keychain if they are to be shared by all users of this machine.
step2: Go to Keychain Access：
标签：Keychain,证书,charles,System,Access,mac,keychain From： https://www.cnblogs.com/pangniu/p/17426030.html