Accessing member variables in IOS development

There is no problem with using _property to access private member variables in a class, using Self.property, but the latter cannot be used in both Init and dealloc, and the use of _property in the program will lead to minor optimizations, Although it is not reflected in our small program.

Early objective-c language, the private member variable of a class can only be defined in the header file of. h, and later in the. m file, in the following form:

@interface EVERYDAYTVC() <Uitableviewdatasource, uitableviewdelegate>

@property (nonatomic, assign) int page;

@end

It was later allowed to add member variables directly in. m:

@implementation EVERYDAYTVC

{

Nsinteger _num;

}

This method and _property are recommended for accessing private member variables.

The article refers to the Tang Qiao Great God's blog http://www.devtang.com, make a record of their own.

Accessing member variables in IOS development