列舉幾個稍微難點的屬性，其他的方法屬性都好理解,可以參照UIButton.h

//
//  ViewController.m
//  UIButton
//
//  Created by City--Online on 15/5/19.
//  Copyright (c) 2015年 XQB. All rights reserved.
//
 
#import "ViewController.h"
 
@interface ViewController ()
@property(nonatomic,strong) UIButton *btn1;
@end
 
@implementation ViewController
 
- (void)viewDidLoad {
    [super viewDidLoad];
     
     
//    typedef NS_ENUM(NSInteger, UIButtonType) {
//        UIButtonTypeCustom = 0,                         // no button type
//        UIButtonTypeSystem NS_ENUM_AVAILABLE_IOS(7_0),  // standard system button
//        
//        UIButtonTypeDetailDisclosure,
//        UIButtonTypeInfoLight,
//        UIButtonTypeInfoDark,
//        UIButtonTypeContactAdd,
//        
//        UIButtonTypeRoundedRect = UIButtonTypeSystem,   // Deprecated, use UIButtonTypeSystem instead
//    };
    _btn1=[UIButton buttonWithType:UIButtonTypeSystem];
    //確定按鈕高亮時是否改變陰影的Bool值.默認時NO,當為YES時,陰影在雕刻與浮雕感之間變化(差不多就是去正常offset的相反數作為新的offset)
     _btn1.reversesTitleShadowWhenHighlighted=YES;
     
    //EdgeInsets邊緣填充 類似CSS盒子模型中的內邊距padding
    _btn1.imageEdgeInsets=UIEdgeInsetsMake(30, 10, 0, 0);
    _btn1.contentEdgeInsets=UIEdgeInsetsMake(30, 40, 0, 0);
    _btn1.titleEdgeInsets=UIEdgeInsetsMake(20, 20, 0, 0);
    UIImage *img=[UIImage imageNamed:@"1.jpg"];
    //UIButton里面包含一個UILabel和一個UIImageView
    [_btn1 setImage:img forState:UIControlStateNormal];
    [_btn1 setTitle:@"按鈕" forState:UIControlStateNormal];
     
    //設置控件內容水平對齊方式
    _btn1.contentHorizontalAlignment=UIControlContentHorizontalAlignmentLeft;
     
    //確定當按鈕高亮時圖片是否改變的BOOL值,為真時圖片隨按鈕高亮而高亮
//    _btn1.highlighted=YES;
    _btn1.adjustsImageWhenHighlighted=YES;
     
    //確定當按鈕高亮時圖片是否改變的BOOL值,為真時圖片隨按鈕失效而變暗
//    _btn1.enabled=NO;
    _btn1.adjustsImageWhenDisabled=YES;
     
    //控制當按鈕按下時是否閃光的BOOL值.默認NO,YES時按下會有白色光點.圖片和按鈕事件的不會因閃光改變.
    _btn1.showsTouchWhenHighlighted=YES;
    _btn1.frame=CGRectMake(20, 100, 200, 200);
    _btn1.backgroundColor=[UIColor redColor];
    [self.view addSubview:_btn1];
     
}
 
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
 
@end