text: //
  //  BlockTest.h
  //  objective-c-proj
  //
  //  Created by lan on 2021/4/13.
  //
  
  #import <Foundation/Foundation.h>
  
  NS_ASSUME_NONNULL_BEGIN
  
  @interface BlockTest : NSObject
  
  - (void) method;
  
  
  @end
  
  NS_ASSUME_NONNULL_END
  