"Objective-c study record" The third day

Today, the content of the study is relatively small, mainly the teacher informed to determine the subject, found some information, and ultimately decided to make a route record of the app.

Some quick actions:

Disable all breakpoints, command + Y

. h and. m file switching, Comand + control + uparrow/dowarrow

Note the current line command +,

Format Code CONTROL + I

OOP in OC

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Defines the public interface of the class, declares the class

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Can be understood as part of the specific implementation of interface

"Objective-c study record" The third day