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//初始化

  self.step=[[UIStepper alloc]initWithFrame:CGRectMake(80, 80, 10, 10)];
   
    赋值
    self.step.value=2;
   
    //    //    //minimumValue设定最小值
    //    //    self.step.minimumValue=0 ;
   
    //    //    //maximumValue设定最大值
    //    //    self.step.maximumValue=20;
   
    //    //    //stepValue设定步进数
    //    //    self.step.stepValue=2;
   
    //    //wraps是否重复循环
    //    //self.step.wraps=YES;
   
    //    //autorepeat是否自动循环，一般默认为yes；
    //    //self.step.autorepeat=YES;

    //    //continuous是否连续进行
    //    //self.step.continuous=NO;
    //
    //setBackgroundImage添加背景图片
[self.step setBackgroundImage:[UIImage imageNamed:@"blood.png"]                forState:UIControlStateNormal];       

   
////    setIncrementImage添加加号按钮图片
   [self.step setIncrementImage:[UIImage imageNamed:@"0.png"] forState:UIControlStateNormal];
   
    //setDecrementImage添加减号的图片
 [self.step setDecrementImage:[UIImage imageNamed:@"blood"] forState:UIControlStateNormal];

//获取减号背景图片;
   [self.step decrementImageForState:UIControlStateNormal];
       
    //setDividerImage添加分割线图片
    [self.step setDividerImage:[UIImage imageNamed:@"blood"] forLeftSegmentState:UIControlStateNormal
             //rightSegmentState:UIControlStateNormal];
   
    //dividerImageForLeftSegmentState 获取分割线的图片
    [self.step dividerImageForLeftSegmentState:UIControlStateHighlighted rightSegmentState:UIControlStateSelected];
   
    //incrementImageForState获取加号图片
    //[self.step incrementImageForState:UIControlStateReserved];
   
    //获取背景图片 backgroundImageForState
//    //[self.step backgroundImageForState:UIControlStateHighlighted];
 
   
   
   
    [self.step addTarget:self action:@selector(changvalue) forControlEvents:UIControlEventValueChanged];
       [self.view addSubview:self.step];
}

-(void)changvalue{
    NSLog(@"%.0f",self.step.value);
   

}