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view类中:
MainView.h
//typedef 这个是重新定义,typeof是求类型
typedef void (^RegisterBlock)(NSString*);
//定义block
@property (nonatomic,strong) RegisterBlock registerBlock;
MainView.m
有:按钮的触发时间,设置相应的block
[_serviceLeft addTarget:self action:@selector(reSetPassword) forControlEvents:UIControlEventTouchUpInside]; } - (void)reSetPassword { self.registerBlock(@"ok"); }
@interface RegisterViewController () @property (nonatomic,strong) RegisterView *registerView; @end @implementation RegisterViewController #pragma mark 构造函数 - (id)registerView { if (!_registerView) { _registerView = [[RegisterView alloc]init]; } return _registerView; } - (void)viewDidLoad { [super viewDidLoad]; self.view = self.registerView; _registerView.registerBlock = ^(NSString * str){ NSLog(@"str is : %@",str); }; }
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原文地址:http://blog.csdn.net/u012496940/article/details/47298909