iOS Block 写法详解

//
//  ViewController.m
//  test_block_1
//
//  Created by admin on 3/28/16.
//  Copyright © 2016 jeffasd. All rights reserved.
//

#import "ViewController.h"

typedef void(^TestBlock)(int);

typedef int(^TestAddBlock)(int, int);

@interface ViewController ()

@property (nonatomic, copy)void (^addBlockResult)(BOOL) ;

@end

@implementation ViewController

- (void)viewDidLoad {
[super viewDidLoad];

NSLog(@"111");

_addBlockResult = ^(BOOL isSuccess){

NSLog(@" isSuccess is %@", [NSNumber numberWithBool:isSuccess]);

};

_addBlockResult(YES);

TestBlock testBlock = ^(int a){

NSLog(@"333");
NSLog(@"the test a is %d", a);

};

NSLog(@"222");

testBlock(3);

void (^ maxBlock)(int, int) = ^(int x, int y){

};

maxBlock(1, 2);

int (^ minBlock)(int, int) = ^(int x, int y){

return x;
};

minBlock(1, 2);

[self testBlockResult:^(int x) {

}];

[self testBlockResult1:^(int y) {

}];

}

- (void)testBlockResult:(TestBlock) testBlock{

}

- (void)testBlockResult1:( void (^)(int )) myBlock
{

}

- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

@end