{
//在這裡做按鈕的想做的事情。
}
- (void)starButtonClicked:(id)sender
{
//先將未到時間執行前的任務取消。
[[selfclass] cancelPreviousPerformRequestsWithTarget:selfselector:@selector(todoSomething:)object:sender];
[self performSelector:@selector(todoSomething:)withObject:sender afterDelay:0.2f];
}