回调函数使得编程更加灵活，能够实现异步操作和事件驱动的编程模式。雨宫琴音ed2k

　　CALLBACK is a feature length Indie psychological thriller film being made by FoxTrot Productions and HorrorScreams VideoVault with the film being shot in Buffalo, New York, U.S.A. Synopsis: Struggling actress Sonia spends the majority of her time going from audition to audition often going for the same role as her on off successful friend Jessica. But after Jessica gets yet ano... (展开全部)