CryptoApp

CryptoApp with Api and some function didn't exist before

Try learning

https://www.cnblogs.com/ficow/p/13788610.html

about publisher in swift

Problem met

An SSL error has occurred and a secure connection to the server cannot be made.

This problem occured in simulator, does this mean my url crash or api get some error?

EXC_BAD_ACCESS:

This may be my marketData is nil, but it shouldn't be broken down right, it optional

Refactoring engine ranges didn't match initial ranges

I don't know why this problem happen but I resolve it with command+B rebuild the project and try rename again