How to write this?

CodePudding user response:

Using method_exchangeImplementations replace the original function, and then write can handle the call the original function

CodePudding user response:

reference 1st floor dirdirdir3 response:

with method_exchangeImplementations replace the original function, and call the original function can be written with the

How do I know if the value is a string or number

CodePudding user response:

isKindOfClass