01_ Podcast iOS Video Tutorial _ Course Introduction and Knowledge point review

The static keyword in the OC syntax cannot be decorated with attributes, nor can it be decorated with methods, only local variables in the method. Static modifies a local variable and then changes the local variable to a static variable. This variable is not recycled when the method is executed. This variable is still in place the next time you execute this method.

Self is a pointer, and in the object method, self points to the current object. Therefore, you can use self to explicitly access the members of the current object. You can use self to access the properties of the current object, or you can use self to invoke the current object's

01_ Podcast iOS Video Tutorial _ Course Introduction and Knowledge point review