text: //
  //  SRCountDownLabel.h
  //  CountDownDemo
  //
  //  Created by 郭伟林 on 2017/6/30.
  //  Copyright © 2017年 SR. All rights reserved.
  //
  
  #import <UIKit/UIKit.h>
  
  @interface SRCountDownLabel : UILabel
  
  + (void)startCountDown;
  + (void)startCountDownWithNumber:(NSInteger)number;
  + (void)startCountDownWithNumber:(NSInteger)number endTips:(NSString *)tips;
  + (void)startCountDownWithNumber:(NSInteger)number endTips:(NSString *)tips endBlock:(void (^)())endBlock;
  
  @end
  