CSDN不行了，发帖没人回！
自己解决了。GPG公钥需要设置信任
作者：陈俊儒
链接：https://www.zhihu.com/question/19987578/answer/13586551
来源：知乎
著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。
只要将证书设置为可信就好了，
--no-tty 是参数是不在控制台输出数据，去掉的话也能看到问题 ~~
gpg 需设置key为可信，不然每次都会提示"Use this key anyway? (y/N)"
命令:
gpg --edit-key Todaynic
然后参照:
When importing a public key onto another machine, you may have configure gpg to
trust the key. Otherwise, when you use the key to do encryption, you may
see a prompt like this:
It is NOT certain that the key belongs to the person named
in the user ID. If you *really* know what you are doing,
you may answer the next question with yes.
Use this key anyway? (y/N)
To trust the key, run:
gpg --edit-key NAME
gpg will output some information, and show a line like:
trust: undefined validity: unknown
You will be at a console, and you have to type "trust":
Command> trust
Please decide how far you trust this user to correctly verify other users' keys
(by looking at passports, checking fingerprints from different sources, etc.)
1 = I don't know or won't say
2 = I do NOT trust
3 = I trust marginally
4 = I trust fully
5 = I trust ultimately
m = back to the main menu
Your decision? 5
Do you really want to set this key to ultimate trust? (y/N) y
Type "quit" to quit. If you run gpg --edit-key NAME again, you will
see a line as below, which means the key is now trusted.
trust: ultimate validity: ultimate
