函数定义block



- (void)capturePhotoWithCompletion:(void (^)(UIImage *originImage,UIImage *proceedImage))captureCompletion; @property (copy) BlockType myBlock;  @property (nonatomic, copy)  void(^textBlock) (NSString*text); // 字符串回调 @property (nonatomic,copy)dispatch_block_t blockAction; // 点击事件回调

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