一个点赞的按钮，实现+1 动画上浮、图标动画过渡
KpengDianZanBtn *btn =[[KpengDianZanBtn alloc] initWithFrame:CGRectMake(100, 100, 100, 44)];
btn.title =@"123";
[self.view addSubview:btn];
btn.btnActionCallBack = ^(BOOL states,UIButton *sender) {
//网络请求在此处处理
if (states) {
[sender setTitle:[NSString stringWithFormat:@"+%d", [btn.currentTitle intValue]+1] forState:UIControlStateNormal];
}
};