感谢大佬分享的模型，我也打印了另一个钥匙扣版本的，但是需要支撑，这个我仅在原基础上加了个圆环即可，既方便也美观哈

Thanks for sharing the model, I also printed another keychain version but it needed support, this one I just added a ring to the original base, it's convenient and beautiful haha!