静态类中的各种静态方法用于安全地触发事件，特别是其中的异步触发还可以预防无纪订阅者带来的麻烦。很好用，只要把委托和其各个参数作为各静态方法的参数就成。-Static class in a variety of static methods used to safely trigger events, in particular, is one of the asynchronous trigger also can be prevented without discipline Subscribers bring trouble. Good use, as long as the commission and its various parameters as the static methods into the parameters.