相关疑难解决方法(0)

财产申报中的含义atomic和nonatomic含义是什么？

@property(nonatomic, retain) UITextField *userName;
@property(atomic, retain) UITextField *userName;
@property(retain) UITextField *userName;

这三者之间的运作区别是什么？

aclass.h

@interface aClass : NSObject {
    NSString *name;
}

@property (nonatomic, retain) IBOutlet NSString *name;

@end

aclass.m 

@implementation aClass

@synthesize name;

- (void)dealloc {
    [name release];
    [super dealloc];    
}

- (void)test1 {
    name = @"hello";
}

- (void)test2 {
    self.name = @"hello";
}

以上面为例.可能有人请解释之间的差异name = @"hello"和self.name = @"hello"？谢谢!

编辑:后续问题:如何为ivar编写我自己的setter,即:self.ivar = ...？