IOS Set method

In order for the member variables of the class to be properly accessed by the external, we need to set the sets and get methods.

[OBJC]View Plaincopy < param name= "wmode" value= "Transparent" >

1. @property (nonatomic,retain)nsstring *test1;
2. @property (nonatomic,copy)nsstring *test2;

The properties of a member variable are different (retain,copy) relative to the Set method:

[OBJC]View Plaincopy

2. @implementation Secondviewcontroller
4. -(void) settest1: (nsstring *) test//retain
6. {
8. //test needs to be retain first, and test is released to nil when self-assignment
10. [Test retain];
12. if (_test1! = nil) {
14. [_test1 release];
16. }
18. //Direct release No need to judge is also possible, iOS in the release operation of Nil is legal
20. //[_test1 release];
22. _test1 = test;
24. }
26. -(void) Settest2: (NSString *) test//copy
28. {
30. if (_test2! = nil) {
32. [_test2 release];
34. }
36. //can also not be judged
38. //[_test2 release];
40. _test2 = [test copy];
42. }

IOS Set method