设置按钮为弗成按：setEnable
[button setEnable:NO];
设置变灰：setAlpha
[button setAlpha:0.4];
设置按钮图像：setImage
[button showsBorderOnlyWhileMouseInside];
[button setImage:[UIImage imageNamed:@"choice"] forState:UIControlStateNormal];
设置按钮标题：setTitle
[button setTitle:@"按钮"];
断定按钮是否透明：isTransparent
[button isTransparent];
设置按钮是否透明：setTransparent
//透明
[button setTransparent:YES];
//不通明
[button setTransparent:NO];
断定边框是否显示边框：showsBorderOnlyWhileMouseInside
设置边框是否显示边框：setShowsBorderOnlyWhileMouseInside
[button setShowsBorderOnlyWhileMouseInside:YES];
//不显示
[button setShowsBorderOnlyWhileMouseInside:NO];
设置按钮的显示类型：setButtonType:
//显示
待续。。。