小白学开发(iOS)OC_ SEL数据类型(2015-08-10)

//

//  main.m

//  SEL数据类型

//

//  Created by admin on 15/8/12.

//  Copyright (c) 2015 admin. All rights reserved.

//

#import <Foundation/Foundation.h>

#import “Person.h”

/*

    SEL数据类型,使用来包装方法的

 */

int main(int argc, const char * argv[]) {

    @autoreleasepool {

//  使用@selector就行把一个方法包装成 SEL数据类型

        

        Person *p = [[Person alloc]init];

        SEL s1 = @selector(eat);

        [p performSelector:s1];

        

        SEL s2 = @selector(call:);

        [p performSelector:s2 withObject:@”1519387554″];

        

        SEL s3 = @selector(findName);

        NSString *result = [p performSelector:s3];

        NSLog(@”%@”,result);

        

    }

    return 0;

}

//

//  Person.h

//  OC的特有语法

//

//  Created by admin on 15/8/12.

//  Copyright (c) 2015 admin. All rights reserved.

//

#import <Foundation/Foundation.h>

@interface Person : NSObject

– (void)eat;

– (void)call:(NSString *)number;

– (NSString *)findName;

@end


//

//  Person.m

//  OC的特有语法

//

//  Created by admin on 15/8/12.

//  Copyright (c) 2015 admin. All rights reserved.

//

#import “Person.h”

@implementation Person

– (void)eat

{

    NSLog(@”吃东西);

}

– (void)call:(NSString *)number

{

    NSLog(@”打电话给 %@”,number);

}

– (NSString *)findName

{

    return @”找到了腾格尔;

}

@end