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angularjs2 中 EventEmitter 的方法emit()里面传参数是做什么的

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angularjs2 中 EventEmitter 的方法emit()里面传参数是做什么的

angularjs2 中 EventEmitter 的方法emit()里面传参数是做什么的


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文档 ，这个类是继承自Subject的，方法emit(value?: T)用来发射值，然后通过方法subscribe(generatorOrNext?: any, error?: any, complete?: any) : any接收处理


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