Is there a C + + demo. I can't get through the signature verification.

[jsking01]

Is there a C + + demo. I can't get through the signature verification.

[jsking01]

If you have, can you send me a copy? Thank you again . Email me 159589716@qq.com

[rbdm-qnt]

Looking for this too, have you had any luck?

[paulran]

Is there a demo? Can anyone share one?