package timer type Option func(ticker *Ticker) // WithCaller 通过其他的 handler 执行 Caller func WithCaller(handler func(name string, caller func())) Option { return func(ticker *Ticker) { ticker.lock.Lock() ticker.handler = handler ticker.lock.Unlock() } } // WithMark 通过特定的标记创建定时器 func WithMark(mark string) Option { return func(ticker *Ticker) { ticker.mark = mark } }