【iOS】UIButton 常用属性

　　 UIButton *add = [UIButton buttonWithType:UIButtonTypeCustom];
add.frame = CGRectMake(WIDTH-80, 20, 60, 30);
add.layer.masksToBounds = YES;
add.layer.cornerRadius = 8.0;
add.layer.borderWidth = 1.0; //边框宽度
add.backgroundColor = [UIColor whiteColor];
//    add.titleLabel.backgroundColor = [UIColor blueColor];

[add setTitle:@"Add" forState:UIControlStateNormal];
[add setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[self.view addSubview:add];
[add addTarget:self action:@selector(addSth) forControlEvents:UIControlEventTouchUpInside];