// 快速创建一个按钮

+ (id)buttonWithType:(UIButtonType)buttonType;

// 设置按钮的内边距

@property(nonatomic) UIEdgeInsets contentEdgeInsets;

// 按钮内部的标签控件

@property(nonatomic,readonly,retain) UILabel     *titleLabel;

// 按钮内部的图片控件

@property(nonatomic,readonly,retain) UIImageView *imageView;



// 设置内部titleLabel显示的文字

- (void)setTitle:(NSString *)title forState:(UIControlState)state;

// 设置内部titleLabel的文字颜色

- (void)setTitleColor:(UIColor *)color forState:(UIControlState)state;

// 设置内部imageView显示的图片

- (void)setImage:(UIImage *)image forState:(UIControlState)state;

// 设置背景图片

- (void)setBackgroundImage:(UIImage *)image forState:(UIControlState)state;



- (NSString *)titleForState:(UIControlState)state;

- (UIColor *)titleColorForState:(UIControlState)state;

- (UIImage *)imageForState:(UIControlState)state;

- (UIImage *)backgroundImageForState:(UIControlState)state;

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
// 快速创建一个按钮

+ (id)buttonWithType:(UIButtonType)buttonType;

// 设置按钮的内边距

@property(nonatomic) UIEdgeInsets contentEdgeInsets;

// 按钮内部的标签控件

@property(nonatomic,readonly,retain) UILabel     *titleLabel;

// 按钮内部的图片控件

@property(nonatomic,readonly,retain) UIImageView *imageView;



// 设置内部titleLabel显示的文字

- (void)setTitle:(NSString *)title forState:(UIControlState)state;

// 设置内部titleLabel的文字颜色

- (void)setTitleColor:(UIColor *)color forState:(UIControlState)state;

// 设置内部imageView显示的图片

- (void)setImage:(UIImage *)image forState:(UIControlState)state;

// 设置背景图片

- (void)setBackgroundImage:(UIImage *)image forState:(UIControlState)state;



- (NSString *)titleForState:(UIControlState)state;

- (UIColor *)titleColorForState:(UIControlState)state;

- (UIImage *)imageForState:(UIControlState)state;

- (UIImage *)backgroundImageForState:(UIControlState)state;