摘要：第一,定义一个全局的按钮变量 @property (nonatomic, strong) UIButton *selectedBtn; 第二,循环创建按钮 //好评中评差评按钮 _normalArr = [NSArray arrayWithObjects:@"goodBtn_normal",@"mi 阅读全文

摘要：#import "ViewController.h" typedef enum { ALPHA = 0, BLUE = 1, GREEN = 2, RED = 3 } PIXELS; @interface ViewController () @end @implementation ViewCont 阅读全文