不要让用户通过点击来垃圾邮件你的应用！
UIGestureRecognizer 的子类，用于监视1秒内的重复点击。
将手势识别器添加到任何 UIView
JPSpamGestureRecognizer *spamGesture = [[JPSpamGestureRecognizer alloc] initWithTarget:self action:@selector(onSpam)];
spamGesture.numberOfTapsPerSecondRequired = 4;
spamGesture.recognizedBlock = ^{
// alternate gesture recognizer block
};
[self.view addGestureRecognizer:spamGesture];