How do I get a selector from its name?

问题

I have an NSString containing the name of a selector I would like to call with performSelector. How can I get a reference to the selector from the string?

回答1:

NSSelectorFromString(name)

回答2:

Could use NSSelectorFromString.

Probably inefficient as parameterizing a SEL is preferred.

来源：https://stackoverflow.com/questions/1174985/how-do-i-get-a-selector-from-its-name